Optimizing the cabin space on our 2020 F450 Regular Cab

I love the standard cab look. Since it's just me and Momma these days, we don't have a need for a personnel carrier. With that in mind, we still have our normal 'stuff' when out running the roads - backpack, purse, a couple of drinks, a snack bag, etc. And, heaven help us if we have to go get groceries :) So, we've removed the center head rest and added a center cup holder down low since I don't like the cup holder in the flip-down center armrest all that much. {Ford OEM p/n: FL3Z1813562AC} Another thing we did was disconnect the center seat belt. This makes putting items behind the driver's seat easier. ** As a bonus: fuel mileage update: I'm currently averaging about 13mpg (12.96 to be exact) with my 15min commute to work. This is figured 'long hand' and not using the on-board computer.