Always cycle your disks
Many years ago, I worked with a system that used floppy disks.
It had the running data on board in non-volatile RAM, and could save one copy of said data to a floppy disk.
Save and Load were next to each other looked almost identical in the UI, right down to the "Are you sure?" confirmation prompt.
You know what's coming, of course.
At the end of a very long, multi-hour programming session, I accidentally hit Load instead of Save.
Fortunately, I followed protocol and saved every 20 minutes to a different disk, so only had to re-write the last 20 minutes of work. That only took five minutes as I'd just done it.
The modern versions of this system have an onboard SSD that can store many thousands of said files, and automatically keeps the previous hundred or so revisions.
And by default, it automatically saves a new revision before Load, so you literally can't make that mistake. I made sure of that.