My grandpa's belt buckle says "BOB". He still wears it. He probably still wears that shirt. I had to laugh out loud a while back when looking at old photos with my mom. There was a photo of he and I at Christmas when I was a small child. I stabbed the photo with my finger - he had just worn the very same shirt in the picture at a family party. Twenty years, still looks new.
This basically applies to everything about his life. He doesn't change anything until it physically breaks down. He is the most pragmatic, frugal, basic human being I have ever met.