This is an creative way to do a ruler for drawing lines for writing in a visual journal. Gay Kraeger uses a piece of dry wall tape that fits in her sketch book.
It has an even plastic mesh and is a very low-tack tape. It can stick to the last page or the cover of a sketchbook and then be stuck on the active page to draw dotted lines. Using the grid, you can draw several lines of various widths. On the 140 pound watercolor paper it could be pulled away without damage. It’s a great idea!
From a big box home store I purchased the smallest and cheapest roll of the stuff I could find. It was $4.40 for a 150 foot roll. It’s probably a life time supply! If anyone local wants some, I’ll bring it to the next sketch outing an you can tear off pieces!