I have 2 yahoomails and one gmail, while the other 2 gmails are used only occasionally. Ooh, gosh...I forgot the other one..coz its not as popular as the two I've mentioned. In the past I've tried using unpopular email accounts coz they sounded cool, but sad news was that it unexpectedly shutdown without notice. I've learned my lesson and will never trust anymore name brands/companies that has no history.
I just added a yahoo account to the gmail account. <edit>I have now 2 Gmail and 1 Yahoo accounts</edit>
2: A hotmail and gmail. The hotmail was my first and is now for games and junk, while my gmail is my primary account. However, I have generally started using my gmail for everything.
I have an email address for tech, one for personal sensitive government and banking, one for personal kin kith and friends, one for art and music, one for politics and social, two for public heavily defended, and so on. I use them clerically and all download to SeaMonkey, except for one secret one I only check with vpn. I have 15.
I have 7 that are active. I got a Google Apps account with my own domain name years ago when they were still free and the Google apps version of Gmail is my main email and I have 4 accounts linked to it: My old Gmail account that I still use for business, another account in my domain that I use for non-personal emails, another Google apps email that is for a non-profit that I'm one of the directors of and for which I administer the domain, website, and email system, and another Gmail account that I use as a forward for mobile devices that receive email so they don't interfere with my main account. The Google Apps version of Gmail is really cool--no ads among other improvements over regular Gmail. I have a couple of anonymous Gmail accounts too. One is just for Giveawayoftheday software that requires an email--I'm amazed at how many emails I get from some companies. Paragon is by far the best in not bothering me and, thus, encouraging my to actually buy their software. Ashampoo is the worst and I would never pay for any of their software just due to their constant emails.