Reader Jim Green of Rockford, Illinois, learned this neat trick from a kitchen employee at the Grand Canyon's Phantom Ranch in Arizona:
"When hiking in hot, dry deserts, I drench several T-shirts (the heavier the better) in cold water, wear one, then fold the others and put them in a zipper-lock bag. When the desert air dries my first shirt, I replace it with one from the bag. It makes a desert hike infinitely more enjoyable. Include some wet bandannas in the bag, too. They help cool your head, and prevent sunburned ears and neck when tucked under a cap Lawrence-of-Arabia style."