• Clean out your cosmetics case at Saks Fifth Avenue's Pretty Organized event. Bring your makeup to the store, where experts will show you what to keep, what to throw away, and what products are missing. Customers who make a $50 beauty purchase will receive a compartmentalized cosmetics bag to stay organized. 611 Fifth Ave., at 50th St. (212-753-4000); M–S (10–8), Su (noon–7).
• Rebecca & Drew is hosting an online sale, offering up to 80 percent off shirts, skirts, shirtdresses, and more. Shirts are $30 to $65 (originally $145 to $220), dresses are $80 (originally $250 to $400), skirts are $30 to $60 (originally $210 to $400), and coats are $100 (originally $500 to $700). Sale starts at midnight on January 12. Online only.
• Shop Acne Studio's end-of-season sale, featuring up to 50 percent off fall/winter merchandise. Men's and women's clothes, denim, and accessories are all discounted. 10 Greene St., nr. Canal St. (212-625-2828); M–S (11–7), Su (noon–7).
• Handbags, clothing, and accessories from fall/winter 2009 are up to 50 percent off at Hayden-Harnett. 211 Franklin St., at Freeman St. (718-349-2247); T–F (noon–8), S–Su (11–8). 253 Elizabeth St., nr. Houston St. (212-334-2247); daily (noon–8).