As I was wrestling with DPNs to knit the armbands, it suddenly occurred to me: Why am I fighting with these stupid things when I KNOW HOW TO CROCHET!?
< My "berry" good girl.
I crocheted the armbands.
On Sam's sweater, I'll crochet the whole band around the body of the sweater, too. It's starting to curl on Jacey's sweater (because I knitted it instead of ribbing, it), but I'm okay with that.
Also, make a dog's sweater longer than you think is necessary. Dogs are horizontal, not vertical, and sweaters don't "hang" on them. You can smooth the sweater down, but the second the dog moves, the sweater's gonna inch back up the spine.