• Meet designer Federica Rettore as she presents her spring jewelry collection at Barneys. 660 Madison Ave., nr. 61st St. (212-826-8900); noon–4.
• More than 60 New York–based designers, including Joseph Altuzarra, Diane Von Furstenberg, Prabal Gurung, and VPL, have donated a full rolling rack's worth of clothes and accessories for the Fashion Girls for Japan sale at the Bowery Hotel. All items will be discounted 50 percent or more off their retail price, and all proceeds from the sale will go toward relief efforts in Japan. Through 4/3. The Bowery Terrace, 335 Bowery, nr. 3rd St.; S (11–7), Su (11–5). $5 minimum donation required for admission; for tickets and more information, visit fashiongirlsforjapan.com.
• Spend $100 on new merchandise and get a $20 gift card at Bird; 10 percent of sales go to Doctors Without Borders. 316 Fifth Ave., nr. 3rd St., Park Slope (718-768-4940); (noon–8)
• Designer pieces by Proenza Schouler, Rachel Comey, and more start at $2 at the PPF Consignment fund-raiser; all proceeds go to Japan relief efforts. Through 4/3. 168 Ludlow St., nr. Stanton St.; (212-677-7973).
• Hand-crafted fashion and home accessories are reduced up to 70 percent at SURevolution's showroom sale. 197 Grand St., nr. Mott St.; F (10–8), S (10–2).
• Handbags are up to 80 percent off at Samantha Thavasa; all proceeds benefit the Japanese Red Cross. 965 Madison Ave., nr. 75th St. (212-535-3920); daily (10–5).
• Clothing is up to 40 percent off at JF & Son; 10 percent of proceeds go to the American Red Cross’s Japanese fund. 56 University Pl., at 10th St. (212-343-3131); F–S (noon–8), Su (noon–6).
• Get 20 percent off purchases over $100 of home gear at Green Depot; 15 percent of proceeds go to World Vision. 222 Bowery, at Prince St. (212-226-0444); F–S (10–8), Su (11–6).
• Designer furniture is discounted at ddc's annual floor-sample sale. The Cosma sleep sofa is $3,590 (originally $5,699), and the selection includes tables, chairs, rugs, wardrobes, and couches. 136 Madison Ave., nr. 31st St.; M–F (9:30–6), S (11–6).
• Sofas, armchairs, ottomans, chaises, and more from the Cobble Hill collection are 25 percent off at ABC Carpet & Home's custom upholstery sale. 888 Broadway, nr. 19th St. (212-473-3000); F (10–7), S (11–7), Su (noon–6).