Yup, there an episode in Season 7 that's pretty much devoted to it. And then there's one were we get to see him with his wife again. And one where he's trapped inside his own mind, living some of his past over and over.
There's also an episode in Season 4 (or 5) that's the "average" day of Bobby Singer.
Bobby Singer is also the name of one of the creators of the show.