FMQ and Teflon Slider

I am practicing free motion quilting and I read that one can make a substitute for the Supreme Slider (which is way too pricey for me) by using a teflon oven liner.  I found a teflon liner at an outlet store and cut a hole for the needle with an exacto knife.  Then I placed it on my extension table and used blue painter's tape to hold it in place.  It definitely makes the quilt sandwich easier to move around.  I will be using it to FMQ a Fall Runner later this week so I will display the results.