I am a big fan of the Digital Inspiration Site
Did you know that you get two google email addresses. The one everyone knows is …@gmail.com. But, you automatically get another one which is …@googlemail.com So the logical question is why would you need two google email addesses? Answer: to cut down on Spam and filter important emails.
The author of Digital Inspiration suggests giving the googlemail.com address to your important contacts and setting up a google email filter to store those emails into s special folder. Makes sense.