I have a random act of kindness that I do every time I go to the San Francisco bay area. On my way back to Sacramento, there is a toll bridge that costs $3. For the past ten years, as a habit, I always pay for myself and the person behind me. And I speed off after I do it so that the person behind me knows it was a random act and it doesnt require any thanks. I just hope it made them smile and they may do the same for someone else one day
