A staff nurse can leave a spare pair of shears in a drawer and a penlight in a locker, and rebuild slowly over years. A traveler gets thirteen weeks, no locker half the time, and a badge that does not open the same doors as everyone else's. Being self-sufficient on the small stuff is not fussiness — it is what stops your first week being a series of small interruptions asking where things are kept.
The practical version: carry your own stethoscope always, your own shears always, your own light always, and a way to keep all three on your body rather than in a bag you cannot find a home for. Everything past that is negotiable by assignment.