Nice thing about barcodes – 1. You can purchase hand-held readers that have enough memory to allow you to do an inventory without being connected to a computer, or that use bluetooth technology- ideal for an historic house where the items are scattered about the property. 2. barcodes can be read using a mirror because the bars do not have chirality. I have seen historic houses apply a barcode to the underside of chairs and to the back of mirrors, pictures, etc. and then use a mirror on the end of a stick to read the labels. So you don’t have to crawl under anything, move furniture, or pull framed items off of the walls.