I think the sweetest thing that anyone's done for me was a relatively simple gesture, but it took him a LOT of time. He took one of my favorite songs by my favorite band, and translated it into my favorite language (French). I hadn't spoken or heard French in so long, I cried. He's always been good at simple gestures like that. Even while I was in Utah for 7 months, with no contact with any of my friends, he found me and always had thoughtful things to say/do. He's still one of my best friends.