Double-check your e-mail list this month -- if you have anyone on the list that hasn't specifically opted in, get 'em off! (It's why we asked our newsletter readers to verify/update their info in January).

Read this essential article from MarketingSherpa for details about how a stray e-mail can get you sued. Then set up a free/cheap system like the one at LiveWireMusician.com to track your mailing lists.