Underground Thrift opened in October. Via FB.

Sometimes the best things come in small packages, and sometimes even better things come in bags that you pack to the brim with as much crap as they can physically hold. Underground Thrift, a new store in Plymouth Church in Brooklyn Heights, is hosting its first-ever Stuff-aSack winter clearance sale this Sunday: You get an Underground tote (a $5 value) and stuff it with as much of the inventory of designer clothes for women, men and children as you can fit, all for $25. Store hours will be extended too: 12:30pm-5:30pm. And in case you need another reason, a portion of the store’s proceeds are donated to organizations fighting modern-day slavery and human trafficking.

Underground Thrift Store, 65 Hicks St. Brooklyn Heights.