> Does anyone know of a way to edit the subject line - without having to
> forward the mail?
AFAIK, the subject line of a message you already have, cannot be changed.
Nor can the date, the sender's name, or the contents.
You could probably get around that by using IMAP to download it to
your PC, edit it there, then have IMAP restore it to Gmail's servers.
Something like that.
Andy