QUOTE(meatwagon45 @ Nov 12 2009, 06:33 PM)

My biggest fear in camping is that after I leave, some damage fines/fees can be assessed to my credit card without me knowing for days if not weeks. Due to the weather this year, my wife and I wait till the last second to make our reservations and it is usually right when we are ready to leave home. Many campgrounds I have found are willing to take cash at check in and not take a deposit. For those that do want a credit card, we have one of those "refillable" credit cards that cannot affect our credit.
We have been fulltiming for over seven years, and we have never had an additional charge appear on our credit card after leaving a park. I don't think that's something you need to worry about.
Go have fun!