I have some background in bacteriology, so it’s wise not to get me started. :)
As others on this thread have pointed out, obsessing over germs and cleanliness can be counter-productive. There is considerable evidence that excessively clean environments weaken our immune systems sufficiently to leave us vunlerable when the inevitable challenge appears.
I just don’t worry about it much.
I do appreciate my cell phone, however, as I always thought the most disgusting common practice was talking into a public phone, which from a microbiological viewpoint is essentially equivalent to kissing all the recent users on the lips.
My background is medical - mostly my own research. And I know what you mean. When I worked for a pediatrician - he told his patients to not sterilize the bottles and nipples - because when the baby started crawling, and putting everything in it's mouth, it would not have built up any immunity. I have always agreed with his teachings.
But, I would never have imagined people doing such nasty stuff in a hotel room. I bring my own paper cups, and sanitizing spray, and cover the remote with a baggie - but the sheets? And, now the glasses and the coffee pot? What is wrong with people?