Get yourself a domain with some webhosting attached and start switching mail-by-mail. Everytime you receive something "important", log in to that service and ch

Get yourself a domain with some webhosting attached and start switching mail-by-mail. Everytime you receive something "important", log in to that service and change the mail address. Thunderbird with filters does a pretty good job with keeping my inbox clean, although I'm aiming for much less mails anyway.