Just user friendly Cloud Storage another name is Evernote which is handy for small file and syncing on multiple devices and stored in the Cloud.
Have several backups, plenty people have backed up to a HDD which sits next to the PC and gets shoved about etc. Ie just as likely to get damaged as the PC and if a flood or a Fire if in the same place most likely both toast.
Worth if a large amount of data especially text is compressed if something like text files will compress dramtically and often be much easier to back up of course make sure its compressed in a format that is easy to uncompress in the future![]()