The most important item Jews have is our Torah and we show the most respect for it. We do this as the scroll is carried and also when we approach the open scroll for an Aliyah . Other ritual objects that we treat with respect are Siddurim, Chumashim and Machzorim . If we drop one of these books on the floor, we kiss it.
Many people kiss the book when they are finished using it.
Even the Tzitzit should not touch the floor. Therefore, at TBS, we have installed a Tallit rack and shelf outside the main bathroom. When you are finished using a sacred book, please return it to the pews or book racks neatly. A Kippah is simply a piece of material that we wear. Since it does not have G-d's name on it, it can be worn into the bathroom.