I use felted dots on mine. I get them at the Dollar Tree.

I use the felt dots you put on the bottom of lamps and knick knacks. I get them at the dollar store.

I like the idea of felt dots........only can imagine dark
green ones & that color sounds like it might fade on the
fabric??????????

I havent had any problems and I have been using them for over a year now.

I need new rulers, I dont like the Omnigrids with that horrid limey green yellow markings,

I'm cheap. I bought thick vinyal on the roll at JAs. Self sticks to the back of the rulers. Works like a charm!

I just saw thick vinyl at Dollar Tree. Got to try that.
I have tried alot of different dots and nothing works that well.
My spelling just gets worse as I get older.

I use Invisi-grip. It works the best for me.

Pull a large rubber band over the long side of the ruler. It won't go anywhere and the rubber is out of the way of the cutting side. Does this help?

I use the cork ones from the dollar store and they work pretty good.