cutting mats that grip the fabric
I am in need of another cutting mat. I have tried a few brands, but as I am confined to bed, and need something that grips the fabric better (fabric doesn't slide on it) I have found that the Olfa mats work good for gripping the fabric much better than others I have tried.. However what it does lack for me is having 1/2" lines running between the 1" lines. There are many different mats I see on line that have this, but I would not want to trade Olfa's grippy surface for the additional lines.
So I guess what I am asking is, is anyone familiear with mats that provide both attributes? I can only use a 12" x 18" because it must sit on my lap on top of something esle I use for support.