what do you think of storing your wallet backup in the cloud? like a storage service. like google drive / drop box / iCloud drive / etc...?
of course there is the USB stick and paper option too...
also how do you load a backup into bitcoin-qt?
The encrypted password should be very strong if you want to save your wallet in the cloud drive.
But a strong password is very easy to be forgotten.
Why don't you use blochchian.info wallet, I think it save than cloud backup wallet.