Rub rim with a piece of citrus and dip into a shallow plate filled with coarse salt.
Add ice to cocktail shaker and add ingredients. (You may need to do these one at a time, if your shaker won't hold 12 ounces of liquid plus the ice.)
Add ice to margarita glasses, strain drink into glass and garnish with orange or tangerine slice.
Recipe adapted from Clemsongirl.com