GMail now allows more than one email address and migration [View all]

A few years back, gmail required IIRC a "." - a period - in all addresses. I wound up with one I no longer like.

Anyone with experience in gmail migration?

The process is described as relatively simple. Create a new box, link the two, all the emalis in the first one to be copied over. BUT .. it won't allow Labels (Folders) to be moved over. Not sure what you do with that. AND gmail of course is tied up with YouTube .... so you have to change that, I think they allow you to append the new address to your existing YouTube in some way.

AND of course for Android users of smart phones, Google is omnipresent.

I'm beginning to wonder if the best idea is a slow move. Create a new address, and start to migrate one linked process or account at a time. Eventually the old one could just be left alone for archiving purposes.

Similar problems with Yahoo email. They are becoming more strict about frequency of logins. I have so much email from various things I do online, I don't even check one of my Yahoo accounts, but it probably gets 400 emails a week. I did that on purpose because who has the time to sort emails all week long??

Any ideas, warnings, success tales ... all appreciated.