Rent the smallest amount of space you will need and pack the unit full.
Start by gathering as many boxes that you think you will need, tape, markers and packing material (i.e. foam shipping noodles, bubble wrap, packing paper or towels).
If possible, try to use uniform size boxes for easy stacking.
Make up an inventory of your items and keep it in a safe place at home or in a safe deposit box away from the unit. Some people choose to photograph and/or video record their belongings as well.
Prepare your space by placing a protective cover on the floor under your goods. Place your storage items on 2x4 boards or on pallets to guard against dampness. Any concrete floor may become cold and damp.
Plan your storage space. Place those items that you may need to access often in the front of your unit, and items you know you will not need to access at the back.
Heavy on the Bottom
Stack heavier boxes on the bottom and lighter boxes on top.
Be sure your boxes are strong enough to hold 25-30 pounds.
Label contents of boxes on all four sides; number the boxes for inventory and seal with tape.
Wrap Fragile Items
Dishes and glasses should be wrapped in paper and packed in sturdy boxes. Stack them on top.
Pictures and mirrors should be wrapped in cardboard and marked “FRAGILE” and stacked on end.
Use All Space
Furniture with drawers can be utilized as storage places for pictures, knick-knacks, china, silverware, small items, etc. Wrap them in tablecloths, towels or blankets to prevent breakage.
Leave Appliance Doors Open
Larger appliances such as refrigerators should be thoroughly cleaned and the doors left slightly open.
Break Down Tables
Tables that have removable legs should be broken down to save space.
Sofas and loveseats with flat sides can be stored on end to save floor space. Wrap cushions in plastic and place on top of sofas.
Cover stuffed furniture with cardboard or blankets to protect against dust. If you stand mattresses on their side, prop them up so they stand straight.
Wipe any items made of metal - bikes, metal tables, tools, etc. - with machine oil to prevent rusting.