I'm with those who suggest keeping your faves and donating the rest. If you haven't needed them in the last year, you probably won't urgently need them in the next. A basic all season gabardine suit is not very expensive and you probably already own a nice shirt/sweater/camisole/tank to go underneath the jacket. That kind of suit is suitable for just about any occassion save for clubbing or girly tea parties (although I'm sure if you dressed it up with a floppy hat, silk scarf and jewelry, you could still use it for that). :-)