I have a 128GB USB drive (a SanDisk Ultra Fit) that stays in the machine permanently, mounted to ~/ext, for anything non-dev-related. This has worked out fine f

I have a 128GB USB drive (a SanDisk Ultra Fit) that stays in the machine permanently, mounted to ~/ext, for anything non-dev-related. This has worked out fine for me--haven't ever really come close to filling up my drive, with the exception of a couple times when unused docker images built up over time. Definitely wouldn't recommend it if you're going to use the machine for photo backups or something, but as a secondary machine (I use a desktop 40% of the time) it's never really been an issue.