I just made a new Google account, and I wish to migrate my android device to use this new account for Google Play et al. I've spent about an hour researching this so far, and the only answer I've found thus far is to factory reset my device.
This is not a viable solution, as I have thousands of apps, contacts, and other personal data that would take far too long to recover, and doing so would be inefficient. Surely the folks at Google have developed a smart way to go about this.
There must be some kind of way to simply "log out" and "log in".
How might I do this?