I currently own a few domains, and have my information on the whois servers. My domain registrar is now offering a service where I would pay $9 per domain per year for them to put up their address and keep my info private. This, however, would be pretty expensive for the amount of domains I have. If it were $9 a year for all of my domains, I'd probably do it.
So, is there a better way? I'd rather not transfer all of my domains to a new registrar. Are there any companies that offer the same service, but are not associated with a regestrar? I could just put their info in the whois, and they could contact me when necessary?
Is a PO Box the best way to go? I'd prefer not to have to pick up junk mail from it though. Can I let half a year or so of mail pile up in a post office box? Any other ideas that are cheap?