It took me six+ trips with a 17' U-Haul last time I moved. I shudder to think how many loads it would be today (the garage was two truckloads by itself). Since I had eight non-op cars to move too on a trailer this was why I took the smaller truck, each trip moved another car.
My guns, TV remotes, important papers, valuable knick-knacks, computer CPUs, stamp collection, laptop, key safe with all my keys, family Bible, car titles, etc went in the large trunk of my personal car. I left that car with the important stuff at the new house, locked in the garage, with the fuel pump fuse removed and keys on my person, until I fully occupied the new house.
Everything else including shop tools, went in the U-haul and got padlocked. I was moving only two hours away but had a lot of trips so stuff got loaded and padlocked overnight.
I worked with a lot of guys who moved in college. It seems the two types of people that are hired by movers are college kids to make a quick buck or two, or else druggies & misc. felons who need some sort of job. Either category are basically not gonna give a rat's behind about your stuff beyond what the foreman can see at best, or will walk off with whatever they can find at worst. Heard far too many stories from movers about what they used to do to stuff to ever trust them with my important/valuable items. Far too many stories ended with, "So the customer said we took/broke this, and my foreman, a 6'8" tall 300 lb guy, smacks his fists together and says 'so what are you gonna do about it?' You want the rest of your stuff off this truck or not?"