Dropbox noob here.
I've been advised by some people to always use the "3-Tier Backup Protocol" to back up important files: 1) on the computer's hard drive itself, 2) to an external hard drive, and 3) to the cloud.
Before I ever started using Dropbox, I was backing up to an external HD. Now that I use the Dropbox cloud, would I be able to temporarily disable Dropbox in order to also back up to my external HD, then re-enable Dropbox afterwards?