So over the last 2 years I've learned some new techniques and YOU get the benefit of them without having to evaluate a hundred different Youtube videos.
This is for a long-sleeved worsted (DK/sport) [fingering] jumper, knitted bottom up, in a woolen yarn.
You need size 7 (5) [3] circular needles in two tether sizes, 24 for the body and 16 for the neck and upper sleeves.
You also want DP needles in size 7 (5) [3] for the cuffs and lower part of the sleeves. Some patterns call for 6 (4) but let's not fuss with that.
It takes me 1430 yards of yarn for a long-sleeved pullover that fits my 40 inch chest and 21 inch arms. This amount allows for steeking and for a mid-back elevation. You may need less but, remember, if you overbuy you can make matching socks.
Do some math to see what stitch counts are right for you. The paper sleeve of the yarn hank or ball should give a number of stitches on a specific needle size and tell you how many inches that is. Even if you need fewer stitches when you cast on for your hem rib, you might need more rounds in the body under the arms (my back is about an inch shorted than usual for my height). You can always knit a 30 x 30 swatch to make sure your particular yarn will work out the way you want.
You may need three weeks to a month to finish this, depending on how experienced you are as a knitter and how much else is going on in your life. But the sky is the limit for how many colors there are to choose from; there are also hand-painted yarns which are multi-colored, and tweeded and beaded yarns.
If you buy hanks of yarn, wind at least two of them into one ball apiece. You will have to stop from time to time and wind more hanks into balls; it takes far less time than trying to untangle the hank as you work. Don't avoid hank yarn; there are too many nice ones out there.
Tie the ends of the two balls together with a square knot, leave a couple of inches of raw ends; you will tuck this loose yarn in during the first round of the bottom rib.
Make a slip knot near this square knot and put it on the end of your 24 inch circular needle. Now use the long-tail (slingshot) cast-on for 200 (260) [280] stitches. If you want to get straight to the goodies, go to 2:20.
I know that this cast-on seems complicated but a) it gives you a nice edge b) I find it easier to keep track of how many stitches I cast on and c) if you have a pattern that calls for a provisional cast-on, this is how you do it.
Now make sure the stitches aren't twisted. Make sure the last five or six stitches are tight on the needle (you'll loosen them later) with the loops around the TOP and the connectors between the loops on the BOTTOM. Holding the last stitches firmly, work around to the other end of the needle making sure all the loops are on the TOP.
Now you can start knitting the rib. Cut one of the balls of yarn off two or three inches from the end of the needle with the last stitches. Slip the last stitch on the other needle to the needle with the yarn ends, pass last stitch on that needle over, move the stitch back to the left needle, and knit it. This makes a smooth line at the join and prevents gaps. You'll use this technique again later. Drape a yarn marker before this first knitted stitch. I often put a slip knot in this marker so I know when I'm starting a new round.
In worsted, unless you are working an Iceland pattern, you will K the next stitch, then P2/K2 around, putting markers at 50, 100, and 150 stitches. For the first 6 to 8 knit stitches in the rib, thread the loose yarn ends into it.
For all others, P the next stitch then K1/P1 around putting markers at the front center, left side and back center.
Work ribbing for 6 (8) [10] rounds and switch to knitting, flipping the marker yarns over the top when you get to them. This shows where you started knitting. Knit around for 100 (110) [120] rounds. Every 10 rounds of knitting, flip the marker yarn to the inside or outside. It will save time in checking whether you are at the marker, and it will help you count rounds.
I highly recommend Irish cottage or pit knitting for the body. a) You are better off not looking at your fingers while you work it, so you can watch TV or a movie. b) It works fast. c) It is less likely to cause tendonitis than the English hold, but the Continental or Norwegian hold also helps with this.
When you come to the end of a ball of yarn, stop 2-3 inches before the end. Start the next knit stitch and when you have wrapped the yarn around the needle, wrap the end of a new ball of yarn on top of it and pull through for a doubled stitch. Keep this up until all the yarn of the old ball has been used, and continue on. This is a join. Once you finish and wash and block your jumper, you'll never notice it.
On the last round stop 5 (6) [7] stitches before the underarm marker. Put the next 10 (12) [14] stitches on a holder. Use a thumb cast on to add 10 (12) [14] stitches for the bottom of your steeking. Do the same thing at the other under-arm halfway around. Run a marker yarn up the center of the steeking. You will later cut along this marker.
Steeking ONLY works in woolen yarn because it hackles as you wash and wear, and this keeps the cut yarn in the middle of the steeking from unraveling. If you are using a blend or cotton or linen, you want to workfaux set in sleeves.
Continue knitting around for 43 (53) [57] rounds.
Work your midback elevation which will let the hem sit parallel to the floor as follows:
K around to the center back marker and 14 stitches beyond it. Bring the yarn to the front, slip the next stitch, put the yarn to the back, return that stitch to its needle (a wrap), turn.
P 28 stitches, bring the yarn to the back, slip the next stitch, bring the yarn to the front, return that stitch to its needle (a wrap), turn.
K 47, wrap, turn.
P 66, wrap, turn.
K 85, wrap, turn.
P 94, wrap, turn.
K one round.
Knit to the middle of the steeking. Knit together at the shoulders as follows; turn the top inside out. Using one of your DPs, pick up one stitch in front and one in back, and knit together. Do this again and pass the last stitch over leaving one on the needle.
When you have done the pass-stitch-over 23 (27) [30] times, turn the top right-side out and put the last stitch on the right-hand needle. Pass the next stitch on that needle over it and put it back on the left needle. Knit that stitch.
Switching to the 16 inch circular needle, knit around to the middle of the other steeking, turn it inside out and knit together 23 (27) [30] stitches. Do the same PSSO maneuver.
Knit around to the other shoulder. There will be a long stitch on top; put your needle under that stitch NOT through it, and knit. This will close up part of the gap. If you still don't like it, you can come back later and fill in with duplicate stitch.
Work ribbing to the other shoulder, the same as the hem (either K2/P2 or K1/P1), slip your needle under the long top stitch and knit, and continue in rib.
Work neck ribbing for the same number of rows as the hem. Now start a new round of rib, but pull the previous stitch over each new stitch to bind off in rib.
When you finish, pull a loop of yarn through the last stitch, tighten it, and cut leaving at least three inches of raw end. Using a darning needle, work this end into the top of the first stitch of ribbing to make a smooth join. Poke it through the next stitch down, weave into the inside of the ribbing, knot and cut, leaving about one inch.
Now pick up stitches for the sleeves as follows:
Using your 16 inch circular needle, knit the 10 (12) [14] underarm stitches from the holder and let this working yarn fall to the inside. Run a marker yarn on each side of the steeking middle marker, 5 (6) [7] stitches to the front and back sides.
Cut the steeking up the middle, taking the marker out as you go. Now using your crochet hook, insert it from outside to inside in the first stitch after the underarm. Pull the working yarn through to the front and put it on your circular needle. Pick up every stitch along the marker, front and back, including one through the shoulder seam.
When you get back to the underarm, slip the first stitch to the right-hand needle, pass the last body stitch over, put it back, and knit it. Knit across the underarm, slip the first body stitch to the needle, pass the last underarm stitch over, put it back, and knit it. This will close up part of the gap that usually develops here. Later you can use duplicate stitch to close up any loose stitches.
Run a marker stitch from the middle of the underarm; usually I pull the "seam" marker below the underarm for this. Count how many stitches you have around. It should be 97 (121) [129] or something like that.
Subtract from that the number of stitches you need at the cuff, 68 (72) [76]. The answer is how many stitches you have to decrease from shoulder to cuff.
Divide by 2; this is how many rows will have to have decreases.
Divide that number into 132 (145) [163] which is the number of rounds I need in the sleeves. The answer is how many rounds to knit before you do another decrease.
Knit that many rounds. When you start the next row, K1 at the underarm marker, K2TOG and at the other end of the round, Slip/K1/PSSO/K1 before the underarm marker. Then knit the rounds to the next decrease.
When you have knitted 100 rounds, count the number of stitches left and do your math again. You may need to leave more rounds between decreases. If you have at most 100 stitches left in a round, divide between your DPs as follows: 35 on N1, 30 on N2, and 35 on N3. Or whatever number adds up to how many stitches you have left.
Finish knitting the sleeve and stop decreasing when you get to 68 (72) [76] stitches. When you have done 132 (143) [163] rounds in the sleeve, work ribbing the same as in the neck, and bind off in rib as you did for the neck.
Check the underarms and the neck rib at the shoulders. Use duplicate stitch to close up any stretched-out stitches. Wash in cold water and allow to drip dry.
You can work triple the rounds at the neck for a turtleneck.
You can work short instead of long sleeves, which will save you one or two balls or a hank of yarn. In fingering weight, this will be comfortable for mid-spring and autumn.
You can put any interest design onto this basic jumper. If you want to work Fair Isle, houndstooth or Icelandic patterns, add stitches when you get to the body, to allow whole-number repeats of the horizontal pattern. Also add 8 (10) [12] stitches in the body because these colorwork designs create a fabric with less give than monocolor knitting and you will need the extra stitches to make the upper body comfortable.
Use the photo album for links to all kinds of beautiful ways to make your jumper. The main thing about them is, you can't work them on autopilot like you can with mono-color untextured jumpers, so they will take longer. But you owe it to yourself to make something that you will never find in a store or that will cost you more than you can afford.