I'm thinking daily sun exposure, being at open studios promptly, and not showing up at open studios grubby. And that six hours of walking around Somerville is tiring for fairly-sedentary me, so adding two hours of physical work before that is a lot.

And before hearing about the cleanup, a friend and I had put some time into pouring over the open studios guide and plotting possible routes for all three days to try to see most of what we want to see. Ditching three hours of open studio time for the bbq and a shower would put a big dent in that.