The usual problem is that every useful item gets treated as hand-reach storage
Once everyone wants water, snacks, wipes, jackets, cables and medicine within immediate reach, the second row and floor area quickly become cluttered. Without fixed zones, every search turns into a group reorganisation.
High-frequency shared items should be centralised, not duplicated around the cabin
Snacks, tissues, sun protection and children's small daily items usually work best in one shared soft bag or small box placed near the main caregiver or most active organiser. That prevents every row from building its own messy mini-storage pile.
Lower-frequency emergency items should be known, but not placed where they obstruct movement
Medicine kits, backup jackets, rain ponchos and charging accessories do not need the most premium reach position. They do need a fixed, known place. Once those items drift under seats or into footwells, both safety and comfort drop.
A one-minute reset at day end works better than constant small rearrangements
Before reaching the hotel, spend one minute putting rubbish out, sorting the remaining snacks and returning key items to their zones. Cabin order comes more from rules and repetition than from continuous ad hoc tidying.