@ComradePorkRoll
In 2000, I went to Burning Man, which is, if you don’t know, a festival that is held on the dry lake bed in a desert, at the end of summer, at which there is no general provision of water. You are warned when you buy your ticket that your hydration is your problem, and that the average human adult in that environment requires two gallons of potable water a day not to die, so you’d better figure out how long you’re going to be there and bring enough water for yourself.

I’d never been camping before under such circumstances, but the person I was attending with had a great bit of advice that worked well for me. He insisted that I get a Camelback, which is a water backpack with a drinking tube.

I made a point of never leaving my tent, not even for a trip to the loo, without having my Camelback on my back. The pragmatic upshot was that drinking water was always as near as my right shoulder. Sipping from the tube became habitual.

I’ve never been so hydrated in my life.

Water and salt tablets. Also put a wet towel over your neck to keep you cooler and lose less water through constant sweating.

I try not to sweat

You know those special evaporate cooling towels?

They’re bullshit. Evaporation cooling works, but the sooper speshul microfiber bullshit is no better than a regular thin piece of cloth.