Sweating the weekend out...?

While you'll, undoubtedly, be sweating out a lot of the holiday weekend, I'm currently sweating over this sweater I've failed for finish.I'm nearly done the February Lady Sweater (halfway done the first of 2 sleeves and then its viola!), but I just found this old cable and bobble sweater sitting about. It's a bit snug on me, so I'm not sure whether it'd work as a sweater that I simply can't button (could deal with it) or make it into some kind of vest? Or forget about it entirely.What do you think? What do you do when your sweaters come out far too large or fall too small? Hem and haw and fret like myself?