For the longest time I wouldn't leave home w/o box wrenches to pull over at a moment's notice and adjust my fenders. I still carry a multitool that is multi enough that it has several box-end wrenches on it. I hate fenders, except I seem to require them.

Nice ride in today. No errands, no kids to drop off, just straight to work.

Out of curiosity, I counted crank revs on the big chainring this morning; 140 revs over 6.5 miles using the 52t ring. Most of the rest was on the 39, w/ some use of the 30 here and there. The number would be different on the way home, so I'll have to check that too, if I remember to.