Dirty Vehicles

When is the last time your postal vehicle was washed? I have been fortunate enough to have had a promaster for years now and I keep the interior very clean, since my promaster has been in the shop the last 2 months I've been forced to use whatever, oh em gee I can't believe the condition of some of these llvs and ffvs, I mean layers of debris and dirt am inch thick. So at your station who cleans the vehicles?