Red Cross Blood Drive, 1-6 p.m. at American Legion Post 47, 184 Bangor St. Download the Red Cross Blood Donor app, visit redcrossblood.org or call 1 (800) RED CROSS.

Senior gatherings at the Putnam House 48 Court St. Houlton, Tuesdays and Thursdays, 9-3 p.m. Games, homemade snacks, coffee and socializing.

Free workshop, Essentials of College Planning, at 9 a.m. and 12 p.m. at the Presque Isle CareerCenter. FMI or to register, 1 (800) 281-3703 or meoc.maine.edu.

Aroostook Charitable Dental Care Days at Rollerama of Houlton, 9 a.m.-4 p.m. Free screenings, cleanings, fillings, sealants and more. Call to schedule appointments: 667-6789.