Yep given up on installing multiple DE's as they always seem to conflict with each other.
And many times don't get the full functionality or features.
So use Redo Backup http://redobackup.org/
and backup my linux partitions to a external usb.
That way can do a fresh install of whatever flavor desktop. And only takes me 10mins to restore back to what I was using before.
Have many distro's setup with installed programs and desktop tweaked to my preference than back that up to external usb.