Packing for vacation...

We are leaving for vacation in just a couple of days. Because we are camping for over a week there is a tremendous amount of preparation that needs completed. When camping you need to bring just about everything imaginable. I am looking forward to our trip but wish getting ready were as simple as packing a bag and heading off to a cozy Bed and Breakfast. No matter how much I prepare we always seen to end up leaving something at home that we really needed. My biggest concern at this point is how we will ever fit everything in the van...