Just forward your email and only send mail from your apps email, that't what I did. But I also liked to start mostly clean slate since most of my stuff Google s

Just forward your email and only send mail from your apps email, that't what I did. But I also liked to start mostly clean slate since most of my stuff Google stuff was a mess. I exported some email filters and all of my calendar events. It's also possible to export/import your email as well. For your google drive you can just share everything or save it on your pc and put it in the new Google drive folder. The things I miss are really small. You might have a bit later or no access to beta's and new features are not turned on automatically (recently this was the case for webhistory, you had to push a switch in your Apps control panel). Furthermore you should probably try using a catchall. I like it a lot, you can filter on specific sent to emails from different services. And you always know who sells your data. I use the format company-type@domain.com. This way you con filter on sent to emails that contain shop for all your online orders.