If someone already suggested this I apologize ahead of time. Stabilizing your ruler is very critical to a good cut, but I also find when my rotary blade starts getting dull, my accuracy also suffers. I try to keep a sharp replacement blade always handy.

Hey Mousie, in my case the Quilter's Rule has grid lines molded into the ruler itself and it has become my go-to 6.5" long ruler, I also have an O'lipfa square that is similar. You really know whether your ruler is the right side up or not because they are noticeable.

There is clear tape you can buy, or sandpaper dots, or other things. Some people have suggested rubber cement that I think I will try, the thing for it is you can position the glue right where you want it, but then you can rub it off for another project -- I like that.

Quilter's Rule 6.5X24" is the best. Those grids on the reverse side really grip the fabric. I am still using the one I bought about 25 years ago. I have many other brands but nothing compares to my Quilter's Rule. The only other ruler I use is a 6.5"X6.5" for cutting small pieces. My other brands stay underneath my dresser in my bedroom. They never see the light of day.

Welcome!

Lots of opinions on "what is best" -

My husband and I do all our cutting together. For cutting strips we like the ruler and cutter from GraceFrame.com. The ruler has a ridge on it and the cutter runs along the ridge. Makes cutting strips accurately much easier. We have a lot of their other square rulers but did not care for them as much for subcutting. We do love their SureGrip rubberized little things to put on the back of your rulers. We have them on all of ours. I also like the rougher OLFA mat for cutting.