I AM CONSTANTLY MAKING NOTES of measurements, shopping lists and cutting dimensions in my shop. When I built my shop cabinets, I made the door panels out of white 1/8" Masonite. I use dry-erase markers to make notes to myself for measurements, such as the spacing of drawers for a cabinet I recently built. When I no longer need the information, I simply erase, and I am ready for my next project or list. The cost of a good set of four quality markers is less than $10.