I am a new member here and appreciate this forum. My wife and I are about to take our first trip in our self-contained 26 ft travel trailer. We want to leisurely drive along the Mississippi Gulf Coast, enjoy the area and see the damage done to this beautiful area. We are excited about the possibility of using the Wal-Mart parking lots if needed, if we find crowded RV campgrounds. Can anyone tell me any specifics about the Wal-Marts in this area, as to whether they do or do not allow overnighting? Any info or advice will be appreciated.