A standby.
Good vodka, preferably one of the potato variety rather than the grain, kept in the freezer and drank in a shot of icy oil.
A very dry vodka martini (someone else can do the Bond line)
A tall vodka tonic, twist of lime, on a hot summer day.
But this guy on here who recommends cherry vodka mixed with mountain dew should be rating on the "Most Disgusting" list.