Like most users I have a range of cloud storage accounts and services, like Google Drive, Dropbox, iCloud, OneDrive, Evernote etc etc.
What’s difficult is to backup or sync the contents of these accounts as you you would anything stored on your own hard disks on your laptop/desktop/tablet.
I went looking for a tool that would allow me to do this for just Google and Dropbox. What I found was CloudHQ and it stood out.
My experience with it has been positive. I watched a short video and read the instructions and it’s easy.
To make life easy when it comes to working with Gmail it possible to share labels. You can install the plugin from here https://chrome.google.com/webstore/detail/gmail-label-sharing/pmmaemmobdmccnfepmkckendmealjapo
I now have a synchronisation service and backup strategy that’s effective across my cloud accounts.