Sales at Metropolitan Window Fashions and Others Sight Unseen is discounting everything on its site by 20 percent, through Saturday (the Pyramid lamp by Bzippy & Co., usually $275, is $220); 347-748-1231, shop.sightunseen.com. Many items at Michele Varian are up to 70 percent off, through Feb. 6 (the dome, shown here, regularly $168, is $98); 27 Howard Street (Crosby Street), 212-343-0033, michelevarian.com. Pan American Phoenix's entire stock is 20 percent off, through Feb. 8 (candlesticks from Mexico, originally $650, are $520); 857 Lexington Avenue (East 64th Street), 212-570-0300, panamericanphoenix.com. Metropolitan Window Fashions is taking 20 percent off the price of fabricating custom draperies, Roman shades and bedding, through Feb. 15 (a 3-foot-wide upholstered cornice, regularly $280, is $224); 469 Amsterdam Avenue (West 82nd Street), 212-501-8282, windowfashions.com.