Don't let your Mac's storage fill up

Don't pay $10 for what you can get for free: https://github.com/RobinNaumann/disko, https://grandperspectiv.sourceforge.net/, https://www.derlien.com/, etc…

Otherwise, this is good advice. My cousin, who isn't particularly computer savvy thought that buying an Apple computer meant he wouldn't need computer expertise, but it stopped booting after running out of disk space during an update, and he didn't have the hardware or the know-how to recover it, so he basically stopped using computers until I built him a gaming computer years later.

Even with price increases, nothing beats external disk storage. One can even tape one to the back of a laptop.

I never used network storage because none of it worked as well as NFS did on ancient Sun pizzabox and lunchbox hardware.

When the kids were visiting, they must have been backing up in the background. The router locked up and the internet vanished. The ISP suggested supersizing my service (meaning monthly bill) to cover one-shot events.

I hate losing control of my own systems, and the alternative is more complex, flakier, harder to use (did you ever have to read a disk drive manual past the setup?) and more costly. Sometimes a nice terabyte drive a month.

This is literally an advertisement.