I was on a training ride on a beautiful day here in San Francisco when I felt my seat was a little low. I stopped and adjusted the seat and when I tightened the seat clamp bolt, it broke! This was the original seat clamp bolt (over 6 years old) so I can't complain.
While I carry lots of extra bolts, I didn't have an extra bolt that fit this hole. I didn't have anything that would solve the problem so had to call my wife to come get me. Luckily, I was just a few miles from home.
On my way back, I stopped at a bike shop and now have, at least, one extra bolt for every one that is on my bike. These will go out with me every time I ride, whether it is around here or on tour.
This is just a reminder to make sure you carry all the extra bolts that you might need. There was no way to tighten down my seat with all the tools and spare parts I had.
Luckily for me, this happened now and not on tour!