Don’t let your domain names expire.
Easy to do – especially if you’re changing your email addresses around.
PS: I’ve been going with 10 year domain registrations recently to help with this – but also because a patent released by Google last year indicated that they look at length of domain registration when ranking a domain. I’m not sure what weight it has – but it all adds up (plus it means I only have to embarrassingly explain why I didn’t renew it every decade instead of every year or two)
