I have two external USB RAID enclosures (IcyBoxes) for backing up my laptop via Time Machine. These are encrypted backups. One lives at home, one in the office,

I have two external USB RAID enclosures (IcyBoxes) for backing up my laptop via Time Machine. These are encrypted backups. One lives at home, one in the office, and I switch them out every few weeks. I use a Caldigit USB dock so backups happen automatically when I connect my machine. I can’t remember cost, but probably in the region of €500-600 (2 enclosures and 4 drives). I have Backblaze also running on my laptop (~$70/year) I have a Synology NAS that is independently backed up to an external drive that is switched out regularly. The NAS takes backups of some online services, like Cloud storage, GitHub and email (some of these are native Synology apps, some custom scripts). The cost was probably around €450 with 2 drives. I used to backup the NAS to the cloud, but stopped as it felt like overkill. I also used to sync between NAS, laptop and phone with Resilio but came to realise that I rarely actually needed it and it was a lot of extra faff. Finally, I manually backup my 1password vaults, important backup codes for 2fa and my primary public/private key to a usb stick that lives in storage. I do this probably every 3 to 6 months or so.