• Stop by Acqua di Parma’s barber event at Barneys for a complimentary straight-blade shave. Customers will receive a special gift with any purchase. 660 Madison Ave., nr. 61st St. (212-826-8900); noon–6. Call 212-833-2617 to make an appointment.
• Meet the models of the 2011 FDNY calendar and have the firefighters sign your copy at Bloomingdale's. 1000 Third Ave., nr. 59th St. (212-705-2000); 6–8.
• Celebrate "fashionable excess, black leather, chains, vodka, and rock ‘n roll" as clothing label Obesity + Speed partner with Oak, D.J.'s Becka Diamond and Greg K, and Kanon vodka for a party. There will be special limited-edition tees in store. 28 Bond St., nr. Lafayette St., (212-677-1293); 7–9.
• Men's and women's clothing, shoes, accessories, books, and gifts are up to 75 percent off at the Paul Smith sample sale. Through 4/30. 382 W. Broadway, nr. Spring St.; Th–S (11–7).