I think most of us, if not all, do random acts of kindness almost everyday without noticing. I tend to do many of them myself. Sometimes I'll go above and beyond though and pay for the food/drink of the customer behind me. I end up feeling so good about it afterward. I love being kind.

Recently, I've been giving away spare change/dollars to the homeless when I come across them on freeway exits, under bridges, on street corners, etc.