11. Mad Fox Brewing Company
Sure, there’s always beer for dessert. But the Falls Church brewpub also serves an adult twist on an American classic. The Over 21 Root Beer Float ($9) adds Absolut Vanilia vodka to brewer Bill Madden’s homemade root beer, plus a scoop of vanilla ice cream.
444 W. Broad St., Falls Church
12. Oz Restaurant & Bar
Some say the best way to fight summer’s heat is with more heat. Warm after-dinner drinks at this Australian eatery include the $10 Orange Roo, made with  brandy, Goslings dark rum, Kahlúa, orange liqueur and steamed half and half.  For an alcoholic latte, try The Custer, which has Amaretto, or The Lanners, which features the brandy liqueur Tuaca—both also $10.
2950 Clarendon Blvd., Arlington