If you’re already a fan of O’Donnell’s Market — or if you haven’t checked it out yet — December is a great time to treat yourself and your friends. Through the end of this month, purchase $100 worth of O’Donnell’s gift cards and get a $20 card of your own. What to try? For first-timers, owner Bill Edelblut recommends the cocktail shrimp, organic salmon, sushi-grade tuna, grass-fed beef tenderloin and signature crab cakes. The holiday tarts and rum buns also make great hostess gifts. Click here, call 301-251-6355 or visit O’Donnell’s Market, 1073 Seven Locks Road next Walgreens at Potomac Woods Plaza.