I think if you can make a perfect pitcher of margaritas, using fresh squeezed lime juice and agave; you're truly prepared for any situation. This is my husband's recipe and it is amazing. Don't bother making these if you're using bottled lime juice. You can tell instantly if it isn't fresh squeezed. It's so worth the squeeze.
Make a big pitcher, line glasses with an exotic salt mix, and pour over ice.
3 cups tequila (100% Blue Agave Tequila)
2 cups Fresh-squeezed lime juice
1 cup Cointreau