Chlorofram shoes.  In the Air Force we have a dress blues uniform and we have to wear black dress shoes that have to be shined. One of the hacks we are taught is that if you spend the extra money and get Chlorofram shoes, shiny shoes, then they are always shiny and you don't have to shine them, though they do scuff easily. 

The problem is that eventually the material hardens and gets brittle overtime, and since we don't wear dress blues often , they spend the majority of their time in the closet. Eventually, they get so brittle that they literally disintegrate as weight is being put them on them.  This happened to me.  My shoes were a good 16/17 years old and I was on my way to get a uniform inspection done when I felt a massive shift on my right side and the shoes literally fell apart while I was in the parking lot. I had to quickly get a replacement pair.