A box that's half empty is much more likely to crumple when you put it under a heavier box on a moving dolly or truck.
Budget Truck Rental offers individual and commercial moving services. The company provides rental trucks, packing supplies and moving services. It offers some discounts and is widely available.
Suffice it to say, I feel like a moving and packing pro at this point and have picked up some tips that I hope can help others with their future moves. My best packing tip: get U-Haul's moving kits.