[bishop77]

> My own trick was to use Graph Papers to match co-ordinates to plan game programs.

Yes, graph papers! I had an XT with a monochrome Hercules monitor, while in the factory where my father used to work there was a full blown 486SX. Envious of the plethora of the available fonts, I magnified the letters of the System [0] font with Paint, transferred them to a graph paper and took them home. Then for each character I wrote a separate (Turbo)Basic subroutine which would draw it in graphical mode exactly as it was on the paper. Finally I assembled these routines into an elementary editor. Nostalgia, yeah.

[0] https://en.wikipedia.org/wiki/System_(typeface)