Start packing items you do not need, such as out-of-season items. Move onto the infrequently-used things and leave the necessities out until moving day.
Avoid using used boxes, as you can't tell if the box will be strong enough to support your possessions.
The heavier the item, the smaller the box needs to be.
Use packing tape instead of duct tape.
Avoid mixing items from different rooms of the house in the same box.
