Larry Shapiro from Appraisals And Antiques has an easy way to remove labels from cardboard boxes

With Ebay and other online auctions becoming the way to sell antiques and collectibles, it seems that recycled cardboard shipping boxes have become an inexpensive tool to use in the shipping process. You may acquire them from many different sources such as your local hardware store, your neighbors, or your own basement. Many dealers have been known to go "dumpster diving" to acquire these boxes. Once you are ready to use them , there are the old paper labels that you have to remove. This is not an easy task unless you use a heat gun or a hair dryer. Just apply heat with either of these devices and the labels will lift off easily. Start in one corner and slowly fan out to the rest of the label. In a short time you will able to remove the whole thing. This process makes "dumpster diving" a more satisfying experience.