Interesting thought. Comfort items in the truck.
How about a porta potty.
In most package cars we have cup holders installed in the newer ones, in the older ones usually between the heater outlet and the instrument box is good.
Clothes hangers, well in many we do have a hook behind the bulkhead door. If not the shelf right behind the driver works well. Not too worried about wrinkles when it will have 1/2 inch of dust on it by the end of the day.
One of the problems with buying said items is getting UPS to allow modification of the car for the add ons. In some centers, even a hang on calendar is frowned upon, so screwing something into the dash or bulkhead might be hard.
Anyway, what type of other items you thinking bout selling? Also, what is your background. Anybody that has enough gumption to sell UPS drivers on creature comfort items..........
d PS hey Ms, what about those leather fingerless gloves they had for 3.95? I love them.