• Meet Stella McCartney when she stops by Barneys New York to show off her fall 2009 collection. She'll also have an informal Q&A session with Simon Doonan. 660 Madison Ave., at 61st St. (212-826-8900); 13.
• Speaking of Stella McCartney, her exclusive collection for Net-a-Porter.com launches today. Online only.
• Def Jam artist Chrisette Michele stops by Sephora Fifth Avenue to celebrate her new album, Epiphany. 597 Fifth Ave., at 48th St. (212-980-6534); 79.
• Buy a makeover package for $185 at Kimara Ahnert, and get a free one good for the Mother-Daughter makeover special. Or buy a facial for $130 and get a free lesson with a makeup artist (worth $185). Through 5/9. Kimara Ahnert, 1113 Madison Ave., nr. 84th St. (212-452-4252); MS (107), Su (15). Call or stop in and mention the Mother's Day special.
• Cotton shirts by Italian men's brand Domenico Vacca used to be $590, but are only $159 at the designer sample sale. Pants that were $780 are now $140, and silk shirts that used to be $790 are now $230. Through 5/7. 14 E. 60th St., nr. Madison Ave., Ste. 900 (212-920-1211); daily (106).
• At the Daryl K and Kerrigan trunk show, pre-order the fall 2009 collections for 20 percent off and shop the spring 2009 collection for up to 25 percent off. One day only. 21 Bond St., at Bleecker St. (212-529-8790); 118. Wine reception: 48.
• Betsey Johnson evening dresses are $75, day dresses are $50, and sportswear is $35 at the designer's sample sale. Through 5/8. Millennium Broadway Hotel, 145 W. 44th St., nr. Broadway, sixth fl. (212-789-7546); daily (108).
• Katy Rodriguez's spring 2009 collection is 20 percent off at her trunk show at Resurrection NY. Meet Katy on Wednesday, May 6, when she stops by to show you the collection herself. Through 5/9. 217 Mott St., nr Spring St. (212-625-1374); daily (117). Appearance: 27.
• Delman's spring collection of shoes is up to 75 percent off. Sandals, gladiators, ballet flats, and more are $89 to $109 (snakeskin heels were $365, but are now $109). Through 5/8. 145 W. 18th St., nr. Seventh Ave.; W, Th (107), F (103).
• Shoes, clothing, and handbags by Loeffler Randall are up to 50 percent off. Prices start at $125 for flats and sandals, $78 for clothing, and $80 for handbags. Through 5/9. 525 Broadway, at Spring St., Ste. 202; W, T, F (107), S (116).
• Rebecca Minkoff bags are over 50 percent off at the designer's sample sale. Also find marked-down summer dresses and retro-styled suits by Abaeté. Through 5/10. 33 W. 17th St., nr. Sixth Ave.; daily (108).
• The 2008 resort collection by 3.1 phillip lim is up to 40 percent off while supplies last. Ongoing. 115 Mercer St., nr. Prince St. (212-334-1160); M–S (117), Su (noon6).