I have a bunch of tips:
1. Use a bra
2. Tape up various parts of the car with racers tape. e.g. lug nuts
3. I carry a small set of ramps to allow better access to the under carriage
4. I carry a full detailing kit.
5. I install a new set of mats at the event
As a rule, I never wash my car after driving to an out of town event. Its just too hard to ensure a perfect job without all my garage facilities. Instead quick detailer is used every where.
Very nice setup and great tips, yes I find it very difficult to keep my car in top detailed shape on a out of town or even a cross town journey.:xyxthumbs