I ended up with two disk drives, and a RAM expansion, so I was able to run GEOS. But it took a good while to build up to that (I was a married, childless adult

I ended up with two disk drives, and a RAM expansion, so I was able to run GEOS. But it took a good while to build up to that (I was a married, childless adult when I used the C=64, if that's any comfort).