The Greenheart Shop, whose fair-trade tiffin was featured in our recent gift guide, hosts its annual holiday benefit tonight from 5 to 8 PM, during which there'll be free vegan-friendly, gluten-free chocolates from Kallari Rainforest Chocolate, organic wine from South Africa, and live music by local Latin guitar and percussion duo Clave Suave. Twenty percent of sales go to the Chicago Fair Trade organization.