Editors always pick up their stack of "dummies," legal-sized white pages, each of which represent one page of the following day's paper. They play with the "cold types," photographic paper with entire stories, ads and photographs already printed on it. Each of the thick, glossy papers, are cut apart with razor-sharp knives, then they apply wax to the back and they stick them on the dummies. This is the way they can check for how much room is left to be used.