I will start it off - I use Thunderbird to handle my multitude of e-mail accounts. I have the following:

***@Comcast.net - everyone gets an account with the internet provider and you likely will be with them for a long time, but what if they get pricey and you want to leave. Then you get:

***@gmail.com or ***@yahoo.com or ***. neverheardofit.com

Thunderbird is one of several e-mail applications that can let you gather all those e-mail accounts into one spot. Between my wife (who never really does the e-mail) and myself I manage 6 email accounts in one spot. On my phone I use manufacturer (Samsung) e-mail to handle the same 6 accounts (wife & I with internet provider, my wife's hobby, my hobby, my tax, a group I handled.)

What do you run around the ethernet road on?