E-Mail Password Threat

I have one email/password that I use for all internet sites that don't have personal data (when I have to enter data such as address/birth date, etc, I just lie although I do use the same lie for all the sites). I never check that email and I empty the spam from that email occasionally. For sites such as my banking site, insurance, etc, I use an different email and use a unique password for each site. I get virtually no spam on this email. I have another email that use for correspondence with friends/family. I also get virtually no spam on this one either.