Oksewglad, I use Nexcare tape for the non-slip coating. Not sure how it would
help on the markings.
I've moved from those awful yellow Omnigrid rulers to Creative Grids. I like the
fine lines on the Creative Grids and it's clear. Not a fan of frosty rulers.
Old rulers can come in handy. I use the square ones when I press my quilt blocks.
