• Celebrate the grand opening of the Hell's Kitchen Housing Works and shop the spring-preview sale. All proceeds benefit homeless and low-income New Yorkers living with HIV/AIDS. Housing Works Hell's Kitchen, 730 Ninth Ave., nr. 50th St.; 11–7.
• Merchandise is up to 80 percent off at the Issey Miyake warehouse sale. The geometric silk-blend dress is $317 (originally $1,585), the stitch-patterned nylon frame coat is $525 (originally $2,625), and the men's dual-tone wool-cotton-blend jacket is $279 (originally $1,395). Through 3/20. Metropolitan Pavilion, 123 W. 18th St., nr. Sixth Ave., fourth fl. (212-226-1334, ext. 231); 8–7.
• Handbags, clutches, and accessories are up to 80 percent off at the Lauren Merkin spring sample sale. The Louise snake bag is $100 (originally $200), the Cassie beach tote is $50 (originally $125), and the Tatum raffia bag is $100 (originally $275). Makeup cases start at $5. Through 3/19. 231 W. 29th St., nr. Seventh Ave., Ste. 201 (212-239-2459); T–F (11–7), Su (11–4).