I have my system configured so that everything I need is kept in a single project folder on my iMac’s internal drive. I keep a drive plugged in dedicated to Time Machine backups.
I also keep extra drives attached to my iMac and once a project is underway, I simply drag the project folder to an external drive and that becomes an on-site backup. I do that until the project is final. Then I make sure it’s on two external drives before taking it off my internal drive.
Off-site backups are always great in case of major disasters… fire, flood, etc. I currently do not have an off-site backup but that’s next on my list.
So I can take any project folder – transfer it to any computer – and pick up editing where I left off, if needed. It’s all there. I might have to let it recreate some media files, transitions etc. but it’s complete and in a single package. Just open it and edit it.
Hope that helps.
Not sure if I will use iCloud or something else for off-site. Off-site also qualifies if you take one of the backup drives out of the building with you… and leave one in the building.