For low-volume data (mostly configuration files) of my personal machines, I have been using tarsnap for a couple of months now. It has saved me once already whe

For low-volume data (mostly configuration files) of my personal machines, I have been using tarsnap for a couple of months now. It has saved me once already when the µSD card holding the operating system on my home server gave up the ghost, so I consider it a good investment (it helps that tarsnap is pretty cheap thanks to deduplication). For higher volume data (source code, mostly) I use a droplet at Digital Ocean and keep my data spread across several machines at home. On my desktop, a Mac Mini, I use Time Machine with an external ~1.7 TB USB drive that I hook up every couple of days (roughly twice a week). It is not the most sophisticated arrangement, but it works well enough as insurance in case a machine suddenly dies. It works less well against accidentally removing files, but I have cut myself into that particular finger often enough to finally learn my lesson. ;-) [The downside of this lesson is that I've become kind of a hoarder when it comes to files. But these days, disk space is cheap, so it is not that much of a problem.]