I use dirvish a text based cron enabled rsync front end. Read dirvish.org for details about it.

I use this to clone and hold time based backups to external disks which I can verify or use offsite.

Rock solid for years.

Aldiko saves your progress in epubs you are reading. I use Calibre to organize various collections.

Haven’t seen one that uses a cloud service.

• Lawrence of Arabia
• Sorcerer
• Silent Running
• The Omega Man
• Primer

Bonus: Trancers/Jack Deth movies.