Stow in the boat and inventory management

Simple way to organize inventory on a ship.
From my experience working in production and logistics departments of industrial SMEs.
We begin by classifying the stowage spaces that we find on our boat. In Acrobat I I classified 80, we will see how many I get in Acrobat II
Then we write down in a spreadsheet (or notebook, if you are from the old school) what we stow in each space.
The small elements are grouped into numbered Tuppers. These elements can be roughly classified: "fuses" or in detail (as is done in companies: 3x3A fuses, 2x10A fuses, etc.)
IMPORTANT: update inventory if:
We change things around
We consume elements (we spend a cartridge of Sika, we replace a fuse ...)
We add elements
The first aid kit must have its own inventory specifying the expiration date of the items that have them.
You can make food inventory, if you want, specifying the expiration date as in the first aid kit.