What: Mint & Cass Guy When: May 17-19; Wed.-Fri., 9 a.m.-7 p.m. Where: 252 West 37th Street, between Seventh and Eighth Avenues, sixth floor (212-594-8536). Why: Mints dresses, were $465, now $125-$185; tops, were $300, now $90; shorts, were $230, now $75. Cass Guys frocks, tops, and belts are 50-70 percent off. What: Inhabit When: May 16-18; Tues.-Thurs., 10 a.m.-6:30 p.m. Where: 1441 Broadway, at41st Street, suite 3101 (212-575-3800). Why: Mens and womens cashmere and cotton tops, $50-$100. What: Vivienne Tam When: May 17-19; Wed., 10 a.m.-8 p.m.; Thurs., 10 a.m.-7 p.m.; Fri., 10 a.m.-6 p.m. Where: 550 Seventh Avenue, between 39th and 40th Streets, twentieth floor (212-840-6470). Why: Dresses, were $425, now $106; tops, were $285, now $70; coats, were $635, now $160. What: Goldenbleu, Hollywould, Leigh Bantivoglio, and Tibi When: May 17-19; Wed.-Fri., 10 a.m.-7 p.m. Where: 336 West 37th Street, between Eighth and Ninth Avenues, fifteenth floor (212-420-9994). Why: Must-have bags, shoes, underpinnings, and dresses are 70 to 80 percent off. What: Steven Alan When: May 18-21; Thurs. & Fri., 8:30 a.m.-8 p.m.; Sat., noon-7 p.m.; Sun., noon-5 p.m. Where: 87 Franklin Street, between Broadway and Church Street, ground floor (212-343-0692). Why: Thirty to 75 percent off mens and womens clothing from designers like Earnest Sewn, Ong, Lyell, Not Rational, Gauge, Clu, and, of course, Steven Alan. What: Yigal Azrouel When: May 16-18; Tues. & Wed., 9 a.m.-7 p.m.; Thurs., 9 a.m.-5 p.m. Where: 225 West 39th Street, between Seventh and Eighth Avenues, seventh floor (212-302-1194). Why: Dresses, were $700, now $125; skirts, were $600, now $65; blouses, were $600, now $90; cashmere sweaters, $570, now $75. What: Lambertson Truex When: May 21-24; Sun.-Wed., 9 a.m.-6:30 p.m. Where: Metropolitan Pavilion, 123 West 18th Street, between Sixth and Seventh Avenues, fourth floor. Why: Handbags and other accessories that retail at Bergdorf Goodman on sale at up to 70 percent off. What: Lela Rose When: May 18-19; Thurs., 10 a.m.-6 p.m.; Fri., 10 a.m.-4 p.m.Where: 224 West 30th Street, between Seventh and Eighth Avenues, thirteenth floor (212-947-9204). Why: Stunning dresses, coats, pants, and tops, $75-$1,200. What: Denise Williamson Showroom When: May 18-20; Thurs. & Fri., 9 a.m.-7 p.m.; Sat., 11 a.m.-6 p.m. Where: 119 Mercer Street, between Prince and Spring Streets, suite 2s (212-226-5507). Why: Clothing and accessories for men and women by Sass & Bide, Ulla Johnson, Nobody denim, and such, up to 70 percent off. What: Lulu Guinness When: May 17-19; Wed.-Fri., 10 a.m.-5 p.m. Where: 260 West 39th Street, between Seventh and Eighth Avenues, eleventh floor (212-302-4564). Why: Evening bags, were $395, now $100; totes, were $350, now $80; cosmetic cases, were $75, now $25. What: Philippe Adec When: May 18-20; Thurs. & Fri., 9 a.m.-7 p.m.; Sat., noon-5 p.m. Where: 213 West 35th Street, between Seventh and Eighth Avenues, seventh floor (212-391-8070). Why: Modern basics (jackets, jeans, knits, and shirts), up to 70 percent off. What: Alessandro DellAcqua When: May 17-19; Wed.-Fri., 11 a.m.-7 p.m. Where: 149 Fifth Avenue, at 21st Street, second floor. Why: Up to 90 percent off clothing, shoes, and bags for men and women.