An unmarked warehouse on the city's near north side, Rock Star Rags holds periodic public sales at which classic duds are offered at the unheard-of rate of $1.50 per pound. When you consider that most local vintage stores buy stock from Rock Star honchettes Deb Johnson and Barb Young, you know what we're getting at here. We're not dissing top-quality emporia such as Pixie 9 (see "Best Vintage Clothing Store"); we're merely talking pricehere. And volume. If you're not the patient type, forget about it. Surfing these massive barrelfuls is a chore. But for the budget-conscious hipster, a visit to Rock Star Rags is an expedition well worth undertaking.