Remember the quaint tradition of yesteryear known as Not Showing Your Underwear to the Whole World? Well, big news (and, yes, girl sitting on that bar stool with your thong hanging out, we’re talking to you): It’s coming back. And it’s made easy with Hanky Panky Concealers. The new underpinnings from your favorite comfortable-thong designer are just the thing to wear with sheer dresses and tops. Made of a soft, lightweight material, the Concealers come in six shapes: camisole, half-slip, strapless, scoop- and V-neck tops, and 3/4-sleeve. So you can be sure to get the right piece to accompany any see-through item in your wardrobe. Plus, you can choose from black, white, or one of three skin tones. To further ensure that your unmentionables always stay unmentioned. Available at Neiman Marcus, 5300 Wisconsin Avenue NW, between Jennifer Street and Wisconsin Avenue (202-966-9700); 2255 International Drive, McLean (703-761-1600).