Small-flat storage fails for predictable reasons, and three habits fix most of it without a single fitted wardrobe.
Declutter before you buy the box
Buying storage first guarantees you store things you do not need. Sort first, measure what is left, then buy the size that holds it.
Go vertical
Stackable cubes and countertop shelves double usable space in the same footprint. Keep weight at the bottom and check how many tiers a set is rated for.
Clear beats opaque for food
A pantry bin you cannot see into becomes an archaeology project. Clear bins with compartments keep packets upright and visible.
Use the walls
Wall-mounted holders and narrow racks take load off the counter. Check the fixing or adhesive rating against the weight before you trust it.
Leave one empty box
Every system that keeps working has slack. One empty bin absorbs the week you have no time to sort.