Sample Sale Madness Let the games begin. What: Pratesi Why: Who-needs-Ambien bedding, bath towels, table linens, and more at up to 75 percent off. When: Mar. 11-13. Sun.-Tues., 9 a.m.-6:30 p.m. Where: 317 W. 33rd St., b/t Eighth & Ninth Aves. (718-747-1656). What: Lauren Merkin Why: Clutches, were $395-$180, now $225-$90; totes, were $350, now $175. When: Mar. 13-15. Tues.-Thurs., 11 a.m.-7 p.m. Where: 231 W. 29th St., b/t Seventh & Eighth Aves., ste. 201 (212-239-2459). What: Shelly Steffee Why: Current collection (clothing and accessories) is 65-85 percent off. When: Mar. 9-11. Fri., 4-8 p.m.; Sat. & Sun., noon-6 p.m. Where: 34 Gansevoort St., b/t Ninth Ave. & Hudson St. (917-408-0408). What: Johnson Why: Trench coats, dresses, shirts, skirts, and pants are $25-$200. Cash only. When: Mar. 17 & 18. Sat. & Sun., noon-6 p.m. Where: 179 Orchard St., b/t Houston & Stanton Sts. (646-602-8668). What: Lulu Guinness Why: Deals on handbags, cosmetic cases, umbrellas, sunglasses, and more. When: Mar. 19-21. Mon., noon-7:30 p.m.; Tues. & Wed., 10 a.m.-7:30 p.m. Where: 260 W. 39th St., b/t Seventh & Eighth Aves., 11th flr. (212-302-4564). What: Dwell Why: Duvet sets, pillow shams, sheets, crib sets, and other home accessories, all up to 60 percent off. When: Mar. 15-Apr. 1. Daily, 11 a.m.-7 p.m. Where: 62 Greene St., b/t Spring & Broome Sts. (212-219-9343). What: Multidesigner Sale Why: Swimwear, cover-ups, and beachy accessories from Vix, Lisa Curran, Havaianas, and such are $10-$95. Cash only. When: Mar. 5-9 & 12-16. Mon.-Fri., 9 a.m.-8 p.m. Where: 250 W. 39th St., b/t Seventh & Eighth Aves., ste. 510 (212-221-2349).