South Moon Under's holding a big spring sale right now, with up to 50 percent off items from brands like Ella Moss, Free People and Michael Stars. Translation: Now's the time to stock up on flirty printed tops for summer, like the Billabong Zig Zag tube top (was $29.75, now $23.80) and the Ella Moss Mariposa Tee (was $86, now $68.80). And bonus, you can wear them under a cardi when the weather turns cool again. (Not that we're thinking about fall already. Yikes.) GET IT: South Moon Under; online, 2700 Clarendon Blvd., Arlington or 10247 Old Georgetown Road, Bethesda.