oooh, one of my fav drink combos: vodka and grapefruit juice! sounds extra refreshing on a scorcher of a day like today. here's the simple recipe:
salt the rim of a glass fill glass with ice one part gin (or vodka), three parts grapefruit juice retreat to cool area
if you're not a salted rim kind of person, then skip it to make a drink called the greyhound. it seems as though you can use either gin or vodka, but it's too hot to give a damn about which is right so just use what you like!