Its raining outside. Make that pouring.  If it were still as cold as it was two days ago, it would be about 6 feet deep. Which has me thinking about shoveling.  I have seen many beautiful walkways ruined with salts and in my own case, my front porch is ipe wood, which I fear to damage with a shovel.  These Heat Trak stair mats will to do the trick.  And they operate for a mere $0.15 an hour.