Does anybody have any suggestions about camping in Washington State? There are a ton of sites, but we plan all week to go camping and end up towing the trailer home, as all the grounds are filled up! We occasionally reserve a place, but it's rare that we have money when it's time to reserve! One thing we noticed, though, is that people tend to reserve sites and not show up for the reservation. That makes me wonder if it is possible to reserve sites with no money down!?