All good info in earlier posts. Two ideas, plus a question:
1) I wrap my phone is a small sheet of saran wrap - works great, no bulk.
2) If it is a long ride and I want to carry a bunch of stuff, I put my repair and first aid stuff in a tiny wedge that was meant to go under the seat, except I've rigged it up to go right under my stem, in front of the head tube. Also works great, and keeps the stuff out of my way when I'm digging for snacks, extra clothes, etc.
3) Question: how many of you have actually needed your chain tool, spoke wrenches...etc...the sort of "extra" or "over and above the minimum" tools? I don't carry chain or spoke tools, and have never needed them, but I always kind of wonder if I should?
"The best rides are the ones where you bite off much more than you can chew, and live through it." ~ Doug Bradbury