Cords for small power tools like sanders and drills can get in the way when you work on a bench. One trick to keep them from interfering is to make up a chain of heavy rubber binders. Loop one end of the chain onto the cord about a foot behind the tool. Loop the other end over a cup hook screwed into the ceiling of your shop. When done, unhook from the cup hook and put the tool in storage.
Since roofing shingles are brittle in winter, they may break if you handle or walk on them. This makes spring a good time to do an inspection. Look for loose or curling shingles.