How about a Good Old Margarita?

INGREDIENTS
1 1/2 oz Jose Cuervo Tequila
1/2 oz Cointreau
1 oz lime juice
Slice of lime for garnish

INSTRUCTIONS
Rum the rim of a glass with lime juice, and then dip in salt.
Pour all ingredients into a shaker with ice; shake vigorously.
Strain into the glass and garnish with a lime slice.