Good additions to the list - thanks. Hadn't thought of sandals ... rain gear I already have, but I don't think I would grab it if I was leaving the house. Maybe toss in an old poncho til I get some dedicated gear. Ditto the hard hat(s).
I actually have 2 MSR camping stoves in my camping gear. I suppose it would be easy enough to swap 1 into this box and grab a few more cans of fuel. My only problem is shelf life on the gas, since I don't use it much.