Map zones, not spoons
'Camping gear — garage shelf 3' is enough for many households.
Record low-use locations
Basement and seasonal bins are where duplicates are often forgotten.
Separate valuable-item inventories
Insurance or property inventories may need greater detail.
Update after moves
The map should reflect the current system.
Practical boundary. Measure first, respect product load limits, and do not improvise wall, ceiling or overhead installations when the structure or appropriate hardware is uncertain.