When I was laying our foam
Glass + membrane + grid for UFH pipes I must’ve measured each room , length and width about 15 times and by the time I got back outside to cut the membrane or grid, I’d forgotten the measurements! I was too lazy every time to find a pen or pencil to write the measurements down, but kept forgetting and re measuring out of sheer stupidness!
The room sizes didn’t change but each subsequent layer I had to remeasure
imagine how much time I’d of saved just drawing it out once 
Glass + membrane + grid for UFH pipes I must’ve measured each room , length and width about 15 times and by the time I got back outside to cut the membrane or grid, I’d forgotten the measurements! I was too lazy every time to find a pen or pencil to write the measurements down, but kept forgetting and re measuring out of sheer stupidness!
The room sizes didn’t change but each subsequent layer I had to remeasure

