Occasionally Cake is celebrating its three-year anniversary and handing out one free cupcake per person to all of its patrons. They will also donate 25 percent of all their sales that day to the Dunbar Alexandria-Olympic Branch of Boys & Girls Clubs of Greater Washington, as well as collect donations to be given to the organization. Occasionally Cake is located at 207 King St. in Old Town Alexandria, Va. and 8859 Richmond Highway in Mount Vernon, Va. The free cupcakes will be offered from 10 a.m. to 7 p.m. Call 703-780-CAKE or visit www.occasionallycake.com.