I don’t have ADHD, but I am very organized. I have 2 bags all the time. One is my regular pocketbook with my vitals in it. The second is a larger bag for my computer/work essentials. I also have a sub-bag for vitals (wallet, license) inside the pocketbook so I can be a fashionista and change pocketbooks without leaving any vitals behind. The work bag never changes.
So you could have a vitals bag that moves between the 2 work bags.
Can you possibly get a bicycle at least?