I am lucky enough to be able to leave the Ute and bag right outside of the building on camera with the security guard 12 feet away. I do agree that the large bag increases the tendency to carry more, but I also think some people carry more just by default. You can see this everywhere. 2 people coming to work: One with a cup of joe and another with a rolling bag, a duffel bag, and the list goes on. You just need to self regulate. I am the one that would be attempting to carry half of my possessions for an 8 hour shift - go figure that I bought a cargo bike.
Here is my always list
.work pants, undershirt, underwear, socks, and shirt
.deodorant and Axe
.some type of lunch (left-overs)
.carving knife and a piece of wood (i am a woodcarver - spoons and ladles)
.various work related documents