Throughout human history, free-sliding beads have been used to both calculate populations and populate barren wristlands. Add some decorative density to your humanistic habitat with today's Groupon: for $20, you get $40 worth of classes at Bead + Fiber in South End. Though materials are not included with class enrollment, students are entitled to 10% off any purchases they make in Bead + Fiber's storefront space.

Bead + Fiber's bevy of classes, such as knitting, felting, fiber hooking, and silk-scarf painting, help students produce chic creations that accessorize wardrobes with individual flair. Wire Work 101, for example, educates attendees on how to bedeck ears with beaded danglers and wire-wrapped baubles ($40 plus materials). Among many topics, students can swing through for tutorials such as Knotting with Pearls ($40 plus materials), Charming ($60 plus materials), and the production of Whirling Loop Bracelets ($40 plus materials). For the resourcefully radiant, there's also the Repurpose Your Jewelry class, which encourages recycling, upcycling, and bicycling while wearing aerodynamic jewelry ($60 plus materials).