Without further adieu... the recipe:
INGREDIENTS
1 part fresh-squeezed lime juice
1 part water
1 part agave nectar
2 parts 100% agave silver tequila
Mix all ingredients together and serve over lots of ice. Salt the rim of the glass if you like (i.e., run a lime wedge across the rim of the glass and dip the glass in coarse sea salt).
TIP: In order to always have fresh lime juice on hand, consider freezing it in ice cube trays. Once frozen, remove cubes and store in Zip-Loc Freezer Bags in your freezer. Thaw cubes as needed.