Got here from the punctuation followup post. Thought I'd better read the original again, which also meant I caught up on comments.

Anyhow, I tend to use too many exclamation marks. I'm really trying to cut back at least with work emails. I only use them now when I'm making a joke with someone I know fairly well, or if I really feel that the emphasis is necessary.

Still use them a fair bit in LJ posts and private emails.