Don't keep anything in a cloud service that you couldn't live with losing, unless you keep a local backup. Including and especially your identity (E-mail) which unlocks all your accounts.
> Don't keep anything in a cloud service that you couldn't live with losing, unless you keep a local backup.
Translated: so do keep everything in a cloud service, just backup it at a fraction of the effort with / insecurity / unreliability / unavailability of your own computer
I consider “cloud” to be a single (unreliable) basket. If you have your online stuff spread across 5 cloud providers, than any of them locking you out will disrupt you in some way.