I glued a felcro strip on the back of mine. (The male part) I used Mazda Van type mats. Pep boys have them for 21.95 for the pair. All I had to do was trim app. 4 sq. in. from the drivers side to make it fit. (Because of the dead petal) The floor covering in the Insight is a natural for felcro. Try it you'll like it.
At Pep Boys this weekend, I bought two clips that clip to the mat and have two long needles that pole through the stock carpet to hold both sides in place. I have used these on other cars with some success.
Maybe I spelled it wrong. You know that stuff that is used on pockets of pants, shirts, jackets, tennis shoes, and wallets. It consists of a "male" strip that engages a fiber type material. When you pull it apart it goes RIIIIPPP. Good enough? All I know is that my floor mats do not slide, no matter how hard you push. The Mazda van is similar to the Ford van.
Thanks, Willie, the Velcro suggestion worked like a charm! I have to admit I really didn't think it would. I was very surprised to see how perfectly the hook side of the Velcro mates to the Insight carpeting. Maybe even better than it does to the fuzzy side of the Velcro.
I used "Industrial Strength" Velcro. I bought a large roll of it at Sam's Wholesale Club (like Costco) for about $14.00. It has an adhesive side, so I didn't need any glue. I put a patch at the base of the mat where some sort of part number or chart is and along the side nearest the door (both are areas without those traction cleats) and may add some to the other side of the mat (nearest the center of the car) if necessary.
I also tried the Velcro idea and had to staple the Velcro to the mat. The Velcro's glue was not strong enough to stay on the back of the mat. The Velcro side was stronger then the glue. It works great now.