A day indoors with fans and books and little food is all very well, but by evening I was ready for at least a bike ride. Then looked out the back and got gardening gloves and clippers and hacked two bags worth of invasive vines and creepers from the end of the yard. Then had a shower in my camisole-bra because I'd have to rinse it out anyway. It will be dry by Thursday, I suppose.
Luckily I have Gatorade for this evening's lost water and salts.