I haven’t been in a truckstop shower in years, I been on vacation more than a few times n stayed at dozens of hotels tho: all the sheets and towels were white....? What hotel brands are pushing dark bedding?
I take my own towel to use after showering, always wear shower sandles, the towel provided goes on the floor to stand on while dressing, the floor mat goes on the bench to sit on when clothed, the washrag is to set my phone wallet and keys on.
If you think the average truck stop has nice showers you should check out Little America in Flagstaff Arizona or the one in Wyoming.
That is by far the cleanest truck stop I have ever been in... And that is my desired destination when the roads close for extented periods of time...
pretty much what i have done as well, over the years.... i never sit on the chair or bench without some sort of "protection".....ya never know what someone else "leaves behind"......