4 limes, cut into small pieces
1 large handful of mint leaves (?1 cup)
8 Tablespoons of sugar (can also use splenda)
2 cups (yikes!!) of white rum
seltzer water

Combine limes, mint, and sugar in bottom of large pitcher (or divide among 8 highballs) and muddle away until there is a lot of juice in the bottom. Add rum and mix. When you are ready to serve, add the seltzer water. Don't add it early b/c it will go flat. Pour into glasses with ice and garnish with mint and/or lime.