Question for those of you with sand coloured Uggs

I have the classic tall in sand, and have them for four years now - they do get pretty dirty after a while, but since they're just for running errands and such, it doesn't really matter. I also have a pair in chesnut, and that color doesn't stain as easily.
 
I have a couple pair of sand ones in the Classic style (short & tall) and even though they are several years old, they still look good. I sprayed them with Ugg brand protectant spray. I believe they've been washed, also. Uggs wash really well ... using Ugg brand soap.
 
My UGG's are also Sand (classic short). They're well over a year old and I've worn them through just about everything, yet they still look rather new IMO. You want to be careful with any pair of UGG's about walking *in* snow or puddles etc...
and the UGG spray protection stuff works great!