The Vic also had a mode whereby you could make "double height" characters (halving the number of addressable rows), so when you typed "a", it would emit (iirc):

  a
  b

and when you typed "b", it would emit:

  c
  d

When I was about 8, I fooled with this peeking and poking pixels so that "a" and "b" bitmaps where the top and bottom halves of a double-height "a", through to the end of the alphabet. I imagined that this would make it easy for my grandparents to use computers. Never mind that they couldn't type, had no interest, and would never remember commands like "load $,8,1".

edit: formatting