I also added towel and washcloth; change of clothes; underwear, plus a pair of shoes which I will leave at the office.

stuff I left at home:

2nd tube
10 lbs of wrenches ... hahahaha seriously!
rubber gloves
chain tool
spoke tool
shower cap
hockey tape
electrical tape
4 extra AAA batteries
spare headlight
extra batteries for the spare headlight
6 other quarters ... hahaha seriously! wtf!

there's probably other stuff in the old rack trunk I forgot to mention here! good grief!