Who Needs a Creeper When One Has This?

I use a piece of vinyl that was above ground pool wall. 42 wide, about 20 feet long. Slick enough that I can grab jack stand or most anything and slide myself any which-a-way. If I'm going to use a jack on it, pull a trans, whatever I place a 4X4 sheet of 1/4 inch checker plate on top of the vinyl. Prevents cracking the vinyl.