I think most people in the horse riding world have those old, dirty, potentially torn towel that they use for literally everything around a horse. In my case, these towels possibly have probably been in the family for 20 years! 

Yet I still found that I was often short on towels with all the washing machine trips they were taking, also they were being lost in the sea of animals in our household and ended up being used for the dogs instead.....

Anyway so basically one day I just thought "Damn, I need another dirty horse towel" and so I decided to make them, and I got that very phrase embroidered on them. Oh what a world we live in.