Prepare furniture
Clean and dry furniture first. Dismantle large pieces where practical, keep all fixings in labelled bags and avoid sealing timber or leather in airtight plastic where trapped moisture could cause problems.
Pack fragile belongings
Wrap items individually, fill empty space so contents cannot move and mark the box on its top and sides. Plates are generally safer packed vertically with cushioning than stacked flat.
Build a stable unit
Place strong heavy boxes low and lighter boxes above. Do not create unstable columns. Protect furniture edges, leave ventilation gaps where appropriate and keep a simple inventory outside the unit.