Jan. 9 to Feb. 28 
Art exhibit The Paint Box Guild of Littleton will have an exhibit from Jan. 9 to Feb. 28 at Highlands Ranch Library, 9292 Ridgeline Blvd. Media included are oil, watercolor, pastel and mixed.  Library hours are 9 a.m. to 9 p.m. Monday through Thursday; 9 a.m. to 5 p.m. Saturday, and noon to 5 p.m. Sunday.
Through Jan. 13
Tree recycling Littleton and South Suburban Parks and Recreation will collect and mulch Christmas trees through Jan. 13, at Cornerstone Regional Park, Belleview Avenue and Windermere Street; and at the Willow Springs Service Center, 7100 S. Holly St. All lights, ornaments, nails, and plastic bags must be removed. Christmas trees only. The trees will be ground into mulch, which will be available free to the public at the site for as long as the supply lasts. Call 303-795-3863.
Jan. 13
Square dancing New Modern square dancing classes are offered by the Mountaineers Square Dance Club from 7-9 p.m. Mondays and Thursdays at Valley View Church, in the gym. Classes start Jan. 13. New Modern square dancing includes new music and no costumes. Call 303-797-8808 or 303-877-2442.
Jan. 14
Divorce seminar St. Andrew United Methodist Church, 9203 S. University Blvd., Highlands Ranch, presents a 10-week seminar “Rebuilding When Your Relationship Ends,” from 6:30-8:30 p.m. Tuesdays starting Jan. 14. The seminar promotes healing for those who are going through a divorce or the ending of a love relationship. It offers education, support and optional social activities. Cost is $175 for the 10-week class and complimentary child care is provided with prior registration. To register, or for information, email Beth Walker at bethdwalker@gmail.com.
Jan. 15, Jan. 22, Jan. 29
Nutrition class. Free Heart Health nutrition classes and cooking demonstrations are offered from 11 a.m. to 12:30 p.m. Jan. 15 (The Pros of Probiotics); Jan. 22 (Foods that Fight Depression); Jan. 29 (OMG! OMG!) at the South Denver Heart Center, 1000 Southpark Drive, Littleton. Join Richard Collins, M.D., “The Cooking Cardiologist,” along with Susan Buckley, RD, CDE, as they share their expertise on Heart Healthy nutrition and cooking solutions. For more information or to register, call 303-744-1065, www.southdenver.com.
Jan. 21, Feb. 10, Feb. 25
Teen addiction Arapahoe/Douglas Mental Health Network presents “Protecting Your Teen from Addiction” from noon to 1:30 p.m. Jan. 21 (event code: admhn12114) and from 5-6:30 p.m. Feb. 25 (event code: admhn22514) at the Southglenn Library, Room A, 6972 S. Vine St., Centennial; and from 6-7:30 p.m. Feb. 10 (event code: admhn210) at the network’s Castle Rock office, 831 S. Perry St., Suite 100. In this class, you will learn about trends in substance abuse in our community, how to talk about drugs and alcohol, signs of substance abuse in teens, prevention and early intervention, effects of substances on the brain and brain development, and shifts in views on marijuana use and legalization. Use the event code listed to register for classes at Blacktie https://www.blacktie-colorado.com/index.cfm.
Jan. 26
Blood drive St. Mary of Littleton Catholic Church community blood drive is from 8:30 a.m. to 12:30 p.m. Jan. 26 at 6853 S. Prince St., Marian Hall, Littleton. For information or to schedule an appointment, contact Robert Kernan at 303-798-4804 or kernanrp@msn.com.
Jan. 29 
Blood drive Columbine Library community blood drive is from 11 a.m. to 3:30 p.m. Jan. 29 inside Bonfils’ mobile bus at 7706 W. Bowles Ave., Littleton. For information or to schedule an appointment, contact the Bonfils’ Appointment Center at 303-363-2300 or visit www.bonfils.org.
Editor’s note: Calendar submissions must be received by noon Wednesday for publication the following week. Send information to calendar@coloradocommunitymedia.com, attn: Littleton Independent. No attachments. Listings are free and run on a space-available basis.