Since I use CorelDRAW as my graphics tool for printing T-Shirts (Direct-To-Garment), I want to see what the design looks like at a true one to one, just to make sure there are no glitches in what will be printed on the shirt(s). So, I do set my environment so that when I select 100% zoom, I am looking at a relative true size graphic, i.e.: one inch on the monitor equals one inch on the real world.
I, also have to say, that I do this especially for the graphics files that my customers hand me to print on their shirts. I look for junk to clean up and also how it will print as I have to have a minimum resolution of about 200 dpi for photos in the shirt print design.
<insert customer quote> "It looks all right on my computer" </insert customer quote>