What would be the best way to give away money?

let say you won the lotto for 26 million and you wanted to give away some money because now you feel kind of guilty. And you see that eventhough you was spending money and wasting it you still got alot of money. I buy stuff that i don't even need or it goes out of style and they come with a new model. I am tired of it and then my greedy cousins want me to always sponsor them with some crazy idea. if you just really wanted to see someone really happy with some money what would you do?