Thin todo list maker/stencil for ballpoint pen

I loved the idea of this to do list stencil, my problem was that the lines don't fit a ballpoint pen right off the bed. so i looked it up, a standard "medium" ballpoint pen has a width of 1.2mm and the holes in the original design were 1.2mm and once I printed it there was no way a pen fit due to the plastic blending together (a pencil worked great) so i widened the lines to 1.8mm and it came out great!

works great for post its!