- An International Camping Carnet, which is similar to a hostel membership card, is required at a few campgrounds and ignored in many others. For USD 35, you may get a discount, priority if the place is full, and, most important, you don’t have to leave your passport with the campground office. They are available from Family Campers, 4804 Transit Road, Building 2, Depew, NY 14043, or you can buy them in Europe.

- Good books on camping in Europe are few and far between. Dedicated campers might want to get a copy of Europa Camping and Caravanning, available from Recreational Equipment, Inc. (listed in Basics #7), Camping Your Way Through Europe (Carol Mickelson, Affordable Adventures, Inc.), or the Travellers Guide to European Camping (Mike and Terri Church, Rolling Home Press).