I see a lot of posts about people who say they create special email accounts just for spam. They don't want to really give their email address to a company or service in fear of spam so they then give this separate account.
If you are fortunate enough to own your own domain (not really all that expansive, $10 or less) you can have the ability to create a spam free email account. Receive only the emails that you are supposed to receive without having any false positives deleted by mistake. This also lets you track where exactly emails came from and know if a particular company has given your email address out to someone else.
I know a lot of you may be interested in this but I'm not sure how many would be able to do this since it requires you have your own domain name. Vote if this is something the interests you and if people are interested in it, I'll post up instructions on how to do it.