I have 5 accounts, 2 Gmail, an AOL, a Yahoo, and 1 thru my ISP new.rr.com.
I would suggest a Gmail account or 2. One for your private stuff and another to use for online stuff so they do not clatter your personal account. Great and a must if you use Google Docs.
I use the thunderbird mail client to keep everything in one spot so I do not have to log in to multiple account. I also have an email client on my phone because thunderbird does not have client for Android.