So those would be the raft, life jacket, headsets, and flight bag which are not needed for this flight, and are just "baggage", 'till the next?

My friend, as captain of the day (30 years ago) to the co pilot of the Navajo: "John, did you put the flight bag (with the charts, and approach plates) in the plane?". "Yup, it's aboard". Flight underway, diversion to alternate necessary, captain asks co pilot for an approach plate.... "Umm, they'e in the nose baggage compartment!".

Make sure that the stuff you need in flight is where you - the pilot - can reach it!