Do you have a ward clerk that fills out lab slips for blood draws and appointments etc?
All of our units have a falls binder (where we pretty much just write the date of the resident's name and date of the fall as everything else is in the incident report or PCC), a coumadin binder (we missed those a loooooong time ago and got a deficiency on a survey probably more years ago than I've been alive), we used to have a wound binder but now most just keep a running list of current wounds, and the kardex is all on a kiosk so no papers around the unit. If a change is updated then it's there in the kiosk. Everyone has a separate gradual dose reduction binder for their units to track when changes are made.
As for interventions, those just go along with the A & I process of ours which involves updating the care plan in PCC anyways so there's no need to track that. We do have someone responsible for tracking falls, date, times, injuries etc but we don't need to as unit managers.
Much of this will depend on your facility policies.