Impulse shopping

Though this is the impulse shopping of a college-budget graphic designer, so it’s reasonable. Sort of. Finals stress induced impulse shopping. I already have three yellow olfa knives (two skinny one heavy duty) and four x-actos (two regular and two gripster) but the silver one is so pretty! It’s so sleek! Someone stole my 12″ metal ruler a while back, but I have at least 8 other rulers, (I’m definitely underestimating that) metal, clear, between 6 and 36″, T-squares and protractors. And you can never have too many fine-tipped black pens. Especially since the tips wear out. So, no, I’m not buying $400 shoes, I’m buying tools I don’t reeeeally need that I will enjoy and use anyway for a whopping $15 :) But they make me happy I guess. What do you collect?