Use the right sized postal box

If you’ve sold an item on an auction website in the past, you’ll already be aware that you need to make sure it’s correctly packaged. Use a container that’s overly small and it can come undone, while one that’s too big will mean the contents may be rattling around while in transit.
You can buy a cardboard postal box in many shapes and sizes, and they only cost a few pennies. You should never skimp on this vital part of the transaction, because if you lose the item in the post it can cost you money.