Upon googling Random Acts of Kindness, I found out there is a foundation that is all about random acts of kindness! Click here to check out their website.
One thing that I found very helpful was their monthly calendar that shows something daily that you can do to help others out! (The link to their calendar is http://www.actsofkindness.org/calendars)
Try the challenge for today! "Smile and say thank you to the bus driver or toll collector."