[critikal17]

I see many people who give up on their SE once the company asks them to send the product back. In reality, there's more than one way to deal with this request, but one of the simplest and most effective is known as boxing.

The complexity of using dry ice goes beyond the scope of this post, as that requires careful consideration and calculation of shipment time, the weight of dry ice to use, and the sublimation time of that quantity. I will not be touching on that, rather giving a general method of how to use dry ice to spoof the weight of an item in transit.

Here we go:

Dry ice is is the solid form of carbon dioxide. It has a unique property of solids called sublimation, where it evaporates into a gas directly from the solid form, without ever turning into a liquid. Because of this, we can use it in its solid form to spoof the weight of an item we are "sending back", and by the time it arrives (most of the time) the box will be empty and there will be no trace of the ice.

Dry ice loses about 25-50% of its weight every 2 hours when not insulated, based on my experience. The greater the weight, the longer it will take to evaporate.

CAUTION: This substance is very cold, and can cause severe frostbite and chemical burns if handled with bare hands, so be careful and use gloves.

First, you need to find a supplier. Walmart and various other stores sell dry ice, but a simple google search should return what you're looking for. Purchase enough dry ice to cover the weight of the item you are spoofing, and add a little bit more, as some will evaporate on your way to the post office.

Once you have purchased the ice, keep it insulated in a cooler or insulated bag (most places you purchase from will give you one of these).

Next. get some plastic wrap and place the weight of product in dry ice plus a little bit more on it. Wrap this up into a little parcel. Then, wrap this parcel in bubble wrap. This acts as insulation as well as gives the impression that you were packaging something of value.
Pictures: http://i.imgur.com/nZISq.jpg
http://i.imgur.com/WPNlh.jpg

This step is very important. Cut small slits in each parcel, 4-6 of them evenly distributed. This allows the gas to escape, and without it, will leave residue, which is suspicious to any claims investigator.
http://i.imgur.com/2sGoT.jpg

Lastly, put all of this in your box along with some newspaper or other packaging material, again to give the impression that something of value was in the box to begin with.

Here's what the finished product should look like

When packaging your box up, ensure there is some breathing room in the box to allow for the gas to escape.
I recommend doing this on a Friday afternoon, soon before the post office closes, as this allows a whole weekend of shipment/sitting in the PO to allow the solid to turn into gas.

Good luck, and I hope more people can move further with their SE's using this information.