If you want to salt the glass, first rub the rim with a lime wedge then dip the rim onto a plate filled with Kosher salt (a coarse ground salt that adheres nicely to the glass).
Combine the tequila, triple sec and lime juice in a shaker (add the crushed ice if you prefer) shake the to mix. Pour into glass if using the crushed ice or pour over ice cubes. Garnish with the lime wedge.
Serving glass: Old Fashion Tips
Grate a small amount of lime zest and add it to the mixture.
Use fresh lime juice, the bottled version simply does not compare.
This is a stronger version than what is normally served in U.S. restaurants so pace yourself! ned glass (or margarita glass)