C'MON, C'MON: We like the way the guys at Commonwealth do spring cleaning, because it means $30 men's sneakers, including an array of crayon-colored Nikes. Don't find anything that's catching your eye? Head toward the back to find a stock of Nike Dunk Lows for only $10 more. But we suggest you go with the $30 sneaks, though -- spend the extra bucks on a Rita's Water Ice next door. That's what we'd do, anyway. GET IT: Commonwealth, 1781 Florida Ave. N.W.