I saw a new ruler at a quilt show last week. It has holes in the ruler where you can put your fingers to keep it from slipping. I can't remember the name but I thought it was a good idea. The holes went the length and width of the ruler and had markings every inch. For lack of a better way to describe it, it was like they cut out a small square in each 1" grid of the ruler. You could place your hands wherever it was comfortable and still be able to keep the ruler from slipping.