ARLINGTON BLOOD DRIVE, sponsored by Inova Blood Donor Services. 10 a.m. to 2:30 p.m., Arlington Central Library auditorium, 1015 N. Quincy St., Arlington. Free. For appointments, call 703-698-3885 or 866-256-6372.
INOVA BLOOD DRIVE, sponsored by Inova Blood Donor Services. 10 a.m. to 3 p.m., Starbucks, 2441 Harrison St., Arlington. Free. For appointments, call 703-698-3885 or 866-256-6372.
ALEXANDRIA BLOOD DRIVE, sponsored by Inova Blood Donor Services. Noon to 8 p.m. Mondays and Wednesdays; 8 a.m. to 4 p.m. Tuesdays, Thursdays and Fridays; Inova Alexandria Hospital, 4320 Seminary Rd. Free; registration required. 703-504-3500.
OBSESSIVE-COMPULSIVE DISORDER, support group for people with the condition. 7:30 to 9:30 p.m. Mondays, St. Andrew's Episcopal Church, 4000 Lorcom Lane, Arlington. Free. 703-250-1126.
SENIOR WALKING CLUB, a walk along the Capital Crescent Trail to Georgetown. Meet at 9:30 a.m. at Culpepper Garden Senior Center, 4435 N. Pershing Dr., Arlington. $3. 703-228-4403.
-- Compiled by RIA MANGLAPUS
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