• Preview the "American High Style" exhibit, as well as designer novelties by Band of Outsiders, 3.1 phillip lim, Patrik Ervell, and more at the Brooklyn Museum's High Style after-party. Tickets are $75 ($125 for two) and include an open bar; purchase them here. Brooklyn Museum, 200 Eastern Pkwy., at Washington Ave. (718-501-6409); 4/22, 9–midnight.
• Shop a special collection of Hervé Léger styles at the Madison Avenue Intermix. Through 4/25. 1003 Madison Ave., nr. 78th St. (212-249-7858); Th–S (10–7), Su (noon–6).
• Stop by Vintage Thrift for a one-day shopping event featuring more than 100 new wedding gowns that are up to 90 percent off. The selection will also include over 300 vintage day and evening dresses spanning from the twenties to the eighties. 286 Third Ave., nr. 22nd St. (212-871-0777); 5–8.
• H&M will host a clothing donation drive in honor of Earth Day named Clothes for Kids in all of its stores that carry the kids' collection. Donations of gently worn clothing will be accepted and donated to the Boys and Girls Club across America. Customers who make a donation will receive a coupon for 20 percent off a future H&M purchase from the children's collection. Through 4/28. Th–W. Various hours and locations.
• Select merchandise is 20 percent off and beauty products are 10 percent off during the Saks Fifth Avenue friends & family sale. Present this invitation to redeem your discount. Through 4/25. 611 Fifth Ave., at 50th St. (212-753-4000); M–F (10–8), S (10–7), Su (noon–7).
• Receive $25 off any beauty purchase of $100 or more at Bergdorf Goodman. Spend $500, get a $50 gift card, spend $750, get a $75 gift card, and spend $1,000, get a $100 gift card. Through 4/25. 754 Fifth Ave., nr. 57th St. (212-753-7300); M–F (10-8), S (10–7), Su (noon–6).
• Ecofriendly shoes from Terra Plana are 15 percent off during the store's Earth Day sale. Through 4/22. 254 Elizabeth St., nr. Houston St. (212-274-9000); Th (11–7).
• Shop deep discounts on Ame dresses and tops, Amanda Pearl evening bags and jewelry, Kooey swimwear, and more at the Launch Pad multi-vendor showroom sale. Through 4/22. 35 Great Jones St., nr. Bowery, sixth fl. (646-290-7894); 10–6.
• Structured basics and party-ready dresses are $25 to $150 at the Apart sample sale. 253 W. 28th St., nr. Seventh Ave., fourth fl. (646-350-4704); Su (11–4), M–Th (10–5).
• Cotton cardigans are $50 (originally $268), linen tunics are $50 (originally $288), and linen dresses are $60 (originally $338) at the Inhabit sample sale. 1441 Broadway, nr. 42nd St., 24th fl.; W–Th (10–6).
• Cashmere apparel, outerwear, and accessories are discounted at the Loro Piana sale. Soiffer Haskin, 317 W. 33rd St., at Eighth Ave. (718-747-1656); Su–W (9–6:30), Th (9–5).
• Select styles from the spring 2010 collection are 10 percent off at Dusica Dusica. The Jewel satin shoes are $427.50 (originally $475), the Lucilla leather shoes are $382.50 (originally $425), and the Lucilla cotton shoes are $337.50 (originally $375). Through 4/30. 67 Prince St., nr. Crosby St. (212-966-9099); M–S (11–7), Su (noon–7).