Notepad and Pen or Pencil
When you call for a tow, there are likely additional phone numbers a dispatcher will give you, as well as a possible incident number. Or if you’re in an accident, you’ll need the other drivers license and plate number. If your pen isn't writing, it could be frozen, so warm it up between your hands. Or you can use a trusty pencil, too (though it might be harder to read in poor lighting).