At your local dollar store you can buy rubber grip mats on a roll. They come 12" by 5' with air holes in different colors. You can cut them to size, I use one under my machine to keep it from sliding when I tilt it and under my foot pedal to keep it in place. I also have custom cut lengths of it to use as a shelf liner for my cabinets before putting in my fabrics. A sturdy surface may help. I got my table at IKEA - it has an adjustable height and I absolutely love the fact that I can lower it for sewing and raise it for cutting, etc.