In case you were wondering what the fuck to do with that extra bit of clothing your ex left behind (especially if he is persistently asking for it), here's my plan:
Place it kindly on his doorstep, in a shopping bag, with these large words written in permanent marker:
You're an asshole.
PS: Your sweater is gay.
Yes, I have carried this out. As of today, the count is at 1. But I plan on recycling this idea. It's brilliant.