Fill a shaker with ice. Add vodka, triple sec, lime juice, and cranberry juice. Once ingredients are combined, shake vigorously (don't be shy!) for at least 15 seconds.

Serve in a martini glass, garnish with a wedge of lime.

A smooth vodka works best in this recipe. Try to get the purest cranberry juice possible, as opposed to the "cranberry juice coctail" mixure that is most common. If the cranberry juice is too sweet, the drink will be too sweet.

If preferred, you can use 1/2 part fresh lime juice and 1/2 Rose's Lime.