I live in a three-storey townhouse. From the upper windows I have a very clear view of the street outside my house, and I'm often struck at the frankly shocking state of the roofs of many of the vans used by tradespeople. I understand that a van is a working vehicle. It's there to do a job. To haul tools, supplies, and a technician to and from a jobsite. It's not there to look pretty. And I know a tradesperson's time is money. I know its hard to keep vehicles clean. The climate doesn't often cooperate. Many of our roads are covered with mud and fall-out. But I'd counter by saying that a van is a rolling business card. An advertisement for the business and the skill of the tradesman who drives it. And a van also often represents a considerable financial investment on the part of its owner and driver. All that filth is hastening the deterioration of the paint work. Accelerating rust. And who knows, probably worsening fuel economy into the bargain. Please, working pros who own and drive vans: Every few months, take a stepladder and a pressure washer, and maybe some snow foam and an agitator brush, and clean off the top of your van. I think you'll be glad you did.