A drink some friends and I came up with:
One fifth of gin
One fifth of vodka
Four liters tonic water
Four or five limes
One large container of lemonade mix
Ice

Mix it all together in a cooler (cut up the limes and squeeze the juice in). This is a great drink, especially for hot weather, because:

  • It packs a punch, yet it tastes light and refreshing
  • The alcohols used have fewer impurities, so they are less likely to cause a hangover (everyone reacts differently to different alcohols, of course)
  • All the tonic water keeps you from dehydrating, also decreasing the hangover
  • The limes prevent scurvy
  • The quinine in the tonic water prevents muscle cramps and can treat malaria.
The last two benefits are really just side benefits. It's the whole gets you drunk without causing a hangover thing that we really like about it.