I've pledged to join in with the Suffolk Random Act of Kindness day next Monday, ATC's are no strangers to Random Act of Kindness or RAK's, as we often enclose extra ATC's as RAKs for swap hosts and send off CRAKs at Christmas and BRAK's at birthday time. I'm going to take in some cakes to the office as a RAK on Monday, I'll try and think of something else that I can do as well!
Further details are here. And I also recommend reading Danny Wallace book Random Acts Of Kindness: 365 Ways to Make the World a Nicer Place if you get the chance, both funny and inspiring at the same time.