(Photo: Courtesy of TJMaxx)

Michaels
The arts-and-crafts emporium beloved by Martha Stewart for scrapbooking paraphernalia and beading gear opens a nearly 15,000-square-foot space this week (808 Columbus Ave., at 99th St.; 212-865-0813). A custom framing shop gets prime real estate; Christmas trees are capped at an apartment-friendly 7½ feet ($199).

T.J. Maxx
In the same complex, the discounter is opening a second local outpost with an expanded accessories section (handbags, jewelry) and the usual 60 percent off labels like Marc Jacobs and BCBG (212-222-0543).

Costco
In mid-November the wholesaler arrives in East River Plaza with an amped-up selection of electronics (digital cameras, Blu-ray players), and True Religion jeans specifically to attract the Upper East Side crowd—as if the bulk paper towels and surprisingly delicious roasted chickens ($4.99) weren’t enough (517 E. 117th St., nr. FDR Dr.; 212-831-7425).