I have at least five Metric 5 allen wrenches.
Still can't find them when a bike is under repair.
I buy one whenever I'm in Lowe's. Same with 10mm wrenches.

I sold a frame not long ago. Thomson seat post binder.
Today, I found the cylindrical nut that goes inside it.

By the time I find my cadence sensors, and install them, I can't remember how to set up the Garmin.

I've bought at least 3 new saddle bags when visiting REI or Performance, only to find the ones I thought I had when I got home.

I once videotaped the disassembly of a hub, so I could remember how it went back. I lost the SD card.

I buy tubes in anticipation of pinching them.

There are at least 200 spokes here. For what?

I used to ride all Selle Italia. Then Selle San Marco. Then Bontrager Inform RL. Now it's Prologo. You'd think my butt could decide.

I'm not an impluse buyer. I'm a sporadic thinker.