Create vertical zones
Daily items belong lower and mid-level; occasional items can go higher where appropriate.
Avoid unstable towers
Stacking loose boxes is not the same as a designed shelving system.
Respect load limits
Shelves, wall systems and anchors have specific capacities and installation requirements.
Put labels where they can be read
Front labels are more useful than labels hidden on top.
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.