@John5097
Quite early on, I added no meals/eating in the bedrooms and it's certainly helped a lot. Before that, I used to find all sorts of stains on the bedlinen and other furnishings, including egg, chocolate, pasta sauce etc. I once even found the INSIDE of a lampshade splattered in spaghetti sauce. I really don't know how the guest managed that. Of course, some guests do still ignore this rule, but the majority don't.
I still allow drinks in the bedrooms so tea and coffee stains etc can still be an issue, but that happens very rarely. The guests are more likely to leave marks on the furniture, even though I do provide coasters and remind them to use them, than on the bedlinen.
I like the idea of the monogrammed make up towels and might give that a try. To be honest though, since I started providing the make up wipes, I don't often find make up on the towels or sheets, even though the guests mostly don't use the wipes. It just makes them stop and think before they smear make up all over my towels!