Sometimes we need to find a place to park overnight while on route to a destination.  Here are a couple of WEB links that list Walmarts, Cracker Barrels, Flying Js and others that allow overnight parking in their lots.

Yahoo Groups Walmartrving - There is a downloadable pdf of Walmart Locations
http://autos.groups.yahoo.com/group/walmartrving/

Overnight Parking
http://www.overnightrvparking.com/index.php