Problem when eliminating a trailer and using just the bed is you lose to much space. When big clean ups are involved you have the bed for debris and the trailer for equipment, or the other way around. Best way to be efficient is to stop spending a lot of money. Just get a 6x12 single axle trailer. Be selective in what you load on to the trailer. Drive with a light foot. Also edit to add that get an open trailer. That is a weight savings right there. You want an open truck bed so an open trailer is the way to go.