You can add multiple Google accounts on your Android device. However, it considers the first account you sign in with as the default and uses it to sign you in across various Google apps and services.

Setting up Yahoo email on your Android device is a similar process. You can add your Yahoo Mail account through Yahoo's app or Google's. Follow these steps to add a Yahoo Mail account to the Gmail app ...

You've got questions? I've got answers. Nancy of Anaheim, California, is writing in with a very interesting question about an email dilemma. "Can I change default email from my iPad/iPhone? I’m not ...