I really, really dislike the rulers that have yellow lines painted on them. They are so hard to see through! I've switched to Creative Grids and Olfa frosted rulers. The Creative Grids have a see-through non-slip texture on the back. I've also stopped replacing my green cutting mats with more green cutting mats. I bought a white one at the office supply store, and have my eye on a navy blue one at the LQS. Who decided that ugly green was the color to use anyway??