At Howard County’s 17th annual 50+EXPO more than 160 vendors and exhibitors will discuss everything from health food to health care. Pick up some freebies and participate in alternative care workshops. $1 admission to benefit the Vivian L. Reid Community Fund, 9 a.m.- 4 p.m., Wilde Lake High School, 5460 Trumpeter Road, Columbia. 410-313-6410.