Originally Posted by tpelle

So, to complicate matters, what do you do about "removable" accessories like the CPU of my cyclocomputer, my headlight, etc? I could take 'em off and drop them into my panniers, but then a thief could just snag 'em out of the pannier as well.

I've already tie-wrapped my bottle-cage headlight battery to the bottle cage, but the headlight itself just unclips from the handlebar. Same way with the computer. I suppose I could buy a fanny pack or something, and stuff those things in it when I'm off the bike but it seems like a hassle. Besides, fanny packs are kind of dorky looking, and everybody assumes you're packing a pistol (which might not be a bad thing in terms of theft-deterrence, on second thought).