Hahaha I was going to say leggings but I want to change my answer to undies too. I definitely wear underwear every day so that would be the best value
I don't run, but I walk a lot. I spend quite a bit on several good pairs of walking shoes a year, way more than I would spend on underwear or any other type of clothing. (and I don't replace my bras or underwear as often!)Running shoes.
Same!Running shoes.