It was the middle of the night, and found the table saw broken. The job needed to be completed by morning so, I plunged the circular saw right through a full sheet of plywood. Screwed the circular saw to it. then screwed a stack of 2x4s as legs. On/off was plugging/unplugging the power cord because the power switch was unaccessible and thus, taped to stay on. Used a scrap piece of wood screwed down to the "table" as my fence. It was a frightening contraption, considering I had already been working 14 hours and tired, as I had to kneel on top of the plywood to finish the cuts. Any slips could mean falling on top of the blade. It wasn't the smartest thing, but was necessary to get the job done on time.