"...How much additional weight does all the crap you carry along add up to?..."

In simple words, A LOT. We, being what we are, have a tendency to load everything to the max. Be it a backpack, or an RV, every nook and crany will be stuffed with something. We boondock a lot while on the move, so we normally keep the fresh water tank full. The new tlr we are looking at has a sixty gallon frest water tank. 60 time eight equals 480 pounds of water all by itself. So it is a good idea to, once you get all loaded up, to go to a scale facility and get weighed. Each axle, and the total weight. Then you go home and try to dump some weight...