I currently cut on the top of my chest freezer. It is right outside my sewing room door and is the perfect height. It also fits my 24x36 mat perfectly,m with room at one end for my tools, or I can put my 18x24 mat there to extend my cutting space when cutting out clothing.
I plan to make a cutting table out of Kalix from Ikea with a table top on top of 2 units and casters.