I totally know what you mean about spam. Hotmail is very bad about it, so I stopped using that account. I found another free email provider (www.fastmail.fm) that I have not had any spam at all. I'm pleased.
I agree, when I have to sign up for stuff on the internet (aside from ebay and the likes) I use my "bogus" email account which is just another freebie email account I use for junk.