When you spend as much time around the gas stove as I do, you really learn to appreciate the cleaning products that they sell on home shopping channels. Not sure if they work or not, but anything that promises to make it easer to get off the grease is worth the shot. For example this Moat Gas Range.
It is essentially a gas stove with an inclined plane for easy cleaning as it collects the detergent, grime and slush, at the end of the gradient in a container on the bottom left, making it easy for you to dispose it off.
Designer: Choi Seungho