I wanted to keep the cuff of the sweater, so I created a fold right above the cuff and chopped.
Then I set my machine to very low tension and did a straight stitch to attach the cuff back to the sleeve. Make sure you don't pull it at all or it will stretch. Since the sleeve hole is fairly small, I had to sew inside the sleeve.
Then of course, add a zigzag stitch right next to your straight stitch and cut off the extra material.
Because the sleeve was wider where I cut it, plus a little stretching from the sewing, I took it in a little along the inside seam. Then I took in the armpits, just as I did in this tutorial. Keep your machine on a very low tension to do the seams here. I did not cut the extra material out of the armpits here. It wasn't very much material and, being my first time sewing sweaters, I wasn't sure how it would hold up.
Now it fits perfectly! I wore it to work. And then I wore it everywhere else. I'm a cardigan kind of girl!
This is my power pose. Ever since I watched Amy Cuddy's TED talk about using your body language to trick your mind into feeling more powerful and calm in high-stress situations, I'm always power posing. Check it out! It really works--I do a different pose every time I make a presentation, have an interview, or generally any time I'm stressed.