One out of my three bikes has a multitool in its saddlebag with a built-in chain tool. I've never had to use it, but I suppose it's nice knowing that should the opportunity arise, I'll be able to completely screw up a roadside chain repair!

I have on at least two occasions seen someone rescue a ride with a chain tool, so it seems prudent. But I can't quite bring myself to add a chain tool to my other two saddlebags.

Meh... what was the question?