The American Red Cross is marking 30 years since FRIENDS first aired by encouraging blood and platelet donations. From November 18th to December 8th, donors will receive two pairs of custom FRIENDS socks, while supplies last. To make an appointment and give in the spirit of FRIENDSgiving, visit www.RedCrossBlood.org. Blood donation opportunities this week include tomorrow in Danbury, from 1 to 6 at the Danbury Fair Mall; and on Friday from 11 to 4:30 at Danbury Hospital.