Originally Posted by Joanie2
For me I've found that it's how my hand is placed on the ruler. I am left handed (not that it's makes any difference) but I keep my thumb and first finger on the board and the rest of my hand on the fabric. This give me a good grip and prevents a lot of that slipping from the ruler. Additionally any new rulers I buy will be Creative Grid because they seem to hold onto the fabric better. My older rulers have either the Invisi-grip or small sandpaper dots. Hope this helps a bit.
That's kind of what I do. I find that just keeping my little finger off the edge and on the fabric is enough to keep it steady. And whoever mentioned not pressing too hard is correct, too. I don't use any sandpaper dots or anything because it makes it hard to "scootch" fabric a bit if necessary.