<p>I have my Gmail as my primary email (primary since I have so many more emails that I keep, almost one for each big email providers). Here, I use to put in all important mails, and group all my RSS in my <a href="http://reader.google.com" title="Google Reader" target="_blank">Google Reader</a>. </p>
I used to be astounded by the fact that I can chat with friends while checking my mail. I really don't have to leave one window while I do more than one thing! Its really great having Google Chat inside Gmail. But then, when I leave my Gmail, I sign in to Google Talk in my desktop (well, that is, when I'm using my Windows top). At the office, I can't have the same privilege, since most of the time, I only have my reader open instead of the Gmail window. This way, I cannot monitor who amongst my friends are logged in their Gmail accounts.
But lo! I have read Lifehacker's post on Google Talk. I didn't know you could do this! Now, I can read all my RSS and still be seing my friends on Google. Nice!!! Perfectly sweet!!!