Just do the cheap unlimited personal plan and hook up a shit load of external HDDs to your PC. I have a system where my NAS syncs to my PC which syncs to Backblaze so I can sorta hack my way into unlimited NAS backup for $10/mo.
3-2-1 backup where the primary source of data is the NAS, on site backup is desktop PC external HDDs, off site backup is Backblaze.
This is nasty to me. Do you not scrub yourself in the shower? Like, if you have dirty hands, and wash them in the sink, you can dry your hands on a white towel and it should not get dirty. Same for your body except you usually have more scrubbing tools to exfoliate your skin and remove the dirt so you should be even cleaner come dry time.
I don’t know that I’d call my used towel “clean” per se, but it’s certainly not dirty. It’s not doing any cleaning or removal of anything, just patting up water.