Okay, here's a question for you: What's the dumbest cycling purchase you've ever made? Something that seemed like a good idea at the time but turned out to be next to worthless (or worse)?
I'll start: A pair of Oakley sunglasses. A hundred-plus bucks for a pair of sunglasses that works no better than something you can get for twenty bucks. And to make matters worse, the interchangeable lenses fall out practically at the slightest touch. Utter junk. Dumbest cycling purchase I've made (so far).