Clannad? It's like...one of the most popular and celebrated animes ever...I hated it thought but that's beside the point. If you're looking for an anime that gives you the feels, you want to watch Clannad. Or read the VN.
Omg your avatar reminds me. I was taking the train home one time from school and I had two animes on my computer, Genshiken and Squid Girl. I wanted to watch Genshiken REALLY BAD but they seated another student next to me, a guy, and I felt it was really really awkward because Genshiken is full of panty shots and inappropriate things and stuff, so I watched Squid Girl the entire time hahaha.