If you work your way into the right hand-me-down loop, you won’t have to buy your kid clothes until at least age 5, when the castoffs start to get a little ratty. But Tuesday night at to the Old Navy outlet in Flatbush (a fave), the Halloween costumes were so cute they bear mention here. Dragons, hamburgers, strawberries, ice cream sundaes, some monkey-looking creature, all for $14.94, which is four bucks cheaper than you can buy them online. (All originally labeled $24.94). So much nicer than the garbage-y vinyl costumes they sell at drugstores. By the way, if you haven’t been to Old Navy (1009 Flatbush at Tilden), it’s worth a visit. They don’t seem to officially call it an outlet, possibly because some of the merch is full-price, but there are loads of wicked deals, especially among the clearance racks.