As Deadly Wraith said, don't do that....my advice is to have a safe deposit box in the bank: it gives you 9 slot . I'm not sure of how much it costs, but i believe it is cheap and you can buy with gold
other opcion is to buy backpacks in order to carry 3/4 more slots
Another suggestion would be to put some of your items on AH for extremely high price, once they're returned to you by mail, without reading it mail would last 13d. You can save a lot of space with this method, just use imagination.
Sometimes you will never know the value of a moment...until it becomes a memory