Random Acts of Kindness and Giving

I am a firm believer in helping others and giving to those in need. But I also believe in giving to those around us (or just randomly) for no other reason than to put a smile on their face. I don't do it to make a facebook status, impress anyone, nor do I expect anything in return. I just want to spread joy and smiles and remind people that there is still good in this world. It is very rewarding to pay for the coffee behind me, give a free product coupon to a random shopper, or to just help a child out at the park. A random note or thank you card to a friend is also a great way to show value on friendship even when we are all so busy. There are so many ways to commit random acts of kindness - I would love to hear some of your ideas as well. :)