These megastores stock some 80,000 different household items, from bedding to kitchenware, at reasonable prices. Weekends are mob scenes, but the Upper East Side branch is often the quieter of the two. Subway: 1, 9 to 18th St.; F, L, V to 14th St. Other location: 410 E. 61st St., between 1st and York Aves., Upper East Side, PHONE: 646/215-4702; Subway: N, R, W, 4, 5, 6 to 59th St.