I think an easy way to sum up american domestic architecture is that if you are remodeling and older bathroom you have to watch for razor blades in the walls
What could possibly be more american than creating a disposable version of a product (safety razor vs straight razor), determining that the waste generated was both dangerous (sharp!) and compact (flat!), and that the best solution was to just.. put a hole to stuff them in the walls and make it the next generation’s problem