• Bensimon is hosting a trunk show at Tani Shoes and debuting twelve limited-edition colors for fall. 131 W. 72nd St., nr. Columbus Ave. (212-595-1338); noon–6.
• Bags for the People will be sewing live at the Union Square Greenmarket. Hop on a machine and sew a market bag. Union Square Park, 17th St., at Broadway; 10–2.
• Christy Turlington and Tory Burch will participate in a three-mile Strides for Life fun run around Lake Agawam in Southampton to benefit the Lung Cancer Research Foundation. The race is open to the public and registration begins at 7 a.m. $40 per adult. The Cultural Center, Pond Ln. and Jobs Ln., Southampton (212-332-4403); 9–10:30.
• Breathe pure oxygen inside the Natura Bisse 02 Bubble at Bergdorf Goodman. Book an hour-long facial inside the life-size bubble to detox your skin. Through 9/1. 754 Fifth Ave., at 57th St., beauty level (212-753-7300); MF (10–8), S (10–7), Su (noon–6).
• Polos, sweaters, shackets (lightweight jackets), belts, raincoats, and more are discounted at Freemans Sporting Club's office moving sale. Cotton polo shirts are $60 (originally $92), shackets in two- and three-button styles are $238 (originally $420), and fine-wale corduroy shorts are $65 (originally $89). Through 9/7. 8 Rivington St., nr. Bowery (212-673-3209); S (11–7), Su (noon–6), M (11–8).
Scope out deals on designer and vintage clothes, shoes, handbags, furniture, and more at Circa Now's sidewalk sale. All prices are less than $60. (The sale will be moved inside if it rains.) Through 8/23. 238 E. 6th St., nr. Second Ave. (212-254-2555); S–Su (noon–7).
• Dresses and separates from past seasons and fall 2009 leather leggings are 60 to 80 percent off at the extended Frank Tell sample sale. 113 W. 27th St., nr. Sixth Ave., third fl. (646-688-4836); W–F (noon–7), S–Su (1–6).
• Dresses are $70, pants and tops are $30, and sweaters are $20 at the Saja sample sale. 250 Elizabeth St., nr. Houston St. (212-226-7570); Th–Su (10–7).
• Become a fan of Henri Bendel's Facebook page or become a follower on Twitter and receive 20 percent off purchases. Offer available by using the in-store Bendel Social computer kiosk or online. 712 Fifth Ave., nr. 56th St. (212-247-1100); M–S (10–8), Su (noon–7).
• Everything in the store is 30 to 50 percent off at La Sirena's end-of-summer sale. Embroidered blouses are $25 (originally $40), dresses are $36 (originally $60), and beach and market bags are $25 (originally $50). 27 E. Third St., nr. Bowery (212-780-9113); Th–M (noon–7).