How do you archive old Mail messages?
Perhaps I'm a bit obsessive, but I've saved every email message I've sent or received since 1996 (except 30 that were lost -- and I know where they went.) It's occasionally useful, but its slowing down Mail. Time to offload ten years' worth into an archive.
Before I write an AppleScript to do this, I thought I'd ask: Have you archived messages out of mail? How did you do it?
--Gil
MacBook Pro (13-inch Mid 2009), Mac OS X (10.6.8)