• Giorgio Armani and the Simon Wiesenthal Center, a museum focusing on racism in America and the history of the Holocaust, have teamed up for two national shopping days. Ten percent of all proceeds purchased at any four of Armani's New York boutiques will be donated to the organization. Just mention the Simon Wiesenthal Center at time of purchase. Giorgio Armani, 760 Madison Ave., nr. 65th St. (212-988-9191), 106; Armani Casa, 97 Greene St., nr. Spring St. (212-334-1271), 117; Emporio Armani, 601 Madison Ave., nr. 57th St. (212-317-0800), 107; Emporio Armani, 410 W. Broadway, nr. Spring St., (646-613-8099), 117.
• View the fall 2008 Marni collection as it debuts today at Saks. Saks Fifth Avenue, 611 Fifth Ave., at 49th St., third fl. (212-940-1361); 14.
• Enjoy up to 85 percent off select dresses, tops, and jackets by Mischen. Through 10/4. 255 W. 36th St., nr. Seventh Ave., Ste. 1106 (212-827-0854); 98.
• Built by Wendy is hosting a three-day sample sale on past fall/winter collection items. The Chevron cropped sweater is $56 (was $162), and the wool jumper is $80 from $279. Through 10/5. 46 N. 6th St., nr. Wythe Ave., Williamsburg, Brooklyn (718-384-2882); Fri.Sat. (118), Sun. (126).
• Christofle and online fashion boutique Vivre are joining up for a sample sale. Enjoy discounts on clothing, accessories, jewelry, home goods, and more. Through 10/6. 317 W. 33rd St., nr. Eighth Ave. (718-747-1656); Fri.Sun. (96:30), Mon. (95).
• Free People's boho frocks, sweaters, shirts, and more are just $10 to $50. Through 10/3. 261 W. 36th St., nr. Seventh Ave., second fl.; Thurs. (107), Fri. (106).
• Get 50 percent off Italian suits, blazers, shirts, and sweaters by Pal Zileri. Through 10/3. 29 W. 57th St., nr. Fifth Ave., Ste. 700. (212-751-8585); 105:30.
• Rodo is hosting an annual sample sale with discounts on the brand's line of evening and day shoes and bags. Shoes range from $50 to $70, and bags are $75 to $200. Through 10/4. 37 W. 57th St., nr. Fifth Ave. (212-751-1477); Thurs. (10:306:30), Fri. (10:305:30), Sat. (11:304:30).
• Escada is hosting a sample sale with up to 85 percent off retail on Escada, Escada Sport, and accessories collections. Through 10/5. Altman Building, 135 W. 18th St., nr. Seventh Ave. (212-852-5446); Thurs.Fri. (108), Sat.Sun. (106).
• Brooklyn boutique Dalaga is hosting a sale on remaining summer stock, including denim for men and women. Through 10/5. 150 Franklin St., nr. Greenpoint Ave., Greenpoint, Brooklyn (718-389-4049); Tues.Sat. (noon9), Sun. (noon8).
• Find 50 to 80 percent off clothing from Edun, Diane Von Furstenberg, and Marc by Marc Jacobs at Samples for (eco)mpassion. Five percent of profits will go to the Somaly Mam Foundation working to end human trafficking. Through 10/5. 2 Great Jones St., nr. Broadway; Thurs. (69), Fri.Sun. (118).
• Enjoy up to 70 percent off retail on Comme Des Garçons, Versace, Miu Miu, Helmut Lang, Prada, and more at a multi-label sample sale. Through 10/5. 129 Prince St., nr. Wooster St. (866-508-1962); 117.
• The Privé sample sale offers 35 to 80 percent off fall clothes from Vince, J Brand, James Perse, 7 for All Mankind, and more. Through 10/5. Chelsea Market, 75 Ninth Ave., nr. 16th St.; 10:307.