The 16th Street Mall is a shopper's paradise -- that is, if you're in the market for some overpriced, faux-Native American souvenirs or maybe a nice wig. For those who actually live and work downtown, there's no beating Walgreens for sheer practicality, economy and reliability, not to mention great people-watching. Housed in a vintage building in the heart of downtown, the store -- which has been there for fifty years -- draws a cross-strata of humanity united by a shared drugstore dependence. Where else can you fill a prescription, develop film, catch up on some magazine reading and buy actual groceries, as well as the latest near-the-register novelties, all during your lunch break? Walgreens hawks the stuff of life in a lively part of town.