This sale at Underground Thrift last weekend went well enough that they’re extending it through this Sunday as well: at the shop, you get as much of the winter clearance items (designer men’s, women’s and children’s stuff) as you can stuff in a tote bag for $25. Spring items will be on sale at the store starting March 11. Don’t forget: Underground Thrift donates 25 percent of its net proceeds to organizations that fight human trafficking and modern-day slavery. Sale is on Sunday, 12:30-4;30pm at the Underground Thrift Store, upstairs at Plymouth Church, 65 Hicks St., Brooklyn Heights.