• Receive 20 percent off and a free gift from Original Penguin at their April Fools’ happy hour with Filter magazine. Magic Hat Brewing Company will provide refreshments and the Antlers and Au Revoir Simone will D.J. 103 Greene St., nr. Prince St. (212-219-3811); 7–10.
• Celebrate the release of Martha Stewart’s new book, Encyclopedia of Sewing and Fabric Crafts, with cocktails and hors d’oeuvre at Stitch Fest. Tickets ($30) can be purchased at ticketweb.com and include a copy of the book. VIP tickets are $200 and include entrance to a sewing workshop, Tote Bag 101. 601 W. 26th St., nr. Eleventh Ave., ninth fl.; 6–9.
• Men’s outerwear is 50 to 70 percent off at the Sanyo sale. 525 Seventh Ave., nr. 38th St., Ste. 1709; W (8:30–6), Th (9–5).