My wife makes a lot of money, so I don't ever think about budgeting at work. So far this year, I spent $800 a month on "work."

That includes EVERYTHING associated with work. This year, that included a uniform refresh (about 5 shirts/pants), a new headset ($895), $175 a month on dry cleaning, and buying coffee/food for the entire crew during a turn about once a trip. I bet I'm on the high side since I know my dry cleaner overcharges and I frequently overpay on Ubers and food delivery.