Oh, you can also do it the way my favorite dive bar does: a lot of tequila, lemon-lime Gatorade, ice cubes, pint glass. Less sophisticated (and, you know, good), but much more hydrating. Sort of.

2 oz. tequila, 1/2 oz. triple sec, 1 oz. lime, shaken over ice, strained, straight up. Used to do 1.5 oz. of tequila, but I always end up wanting more. Of course, you have to tweak the ratios a b...