16 paper products and other supplies utilized by businesses including plain sheets of paper, continuous-feed computer paper, invoices, shipping documents, dray tickets, labels, envelopes, pads, bills of lading, purchase orders, printer ribbons, snap sets, continuous stock tab, binders, folders and receipts; sale of custom printed paper products and other supplies utilized by businesses including invoices, shipping documents, dray tickets, labels, pads, envelopes, bills of lading, purchase orders, snap sets, continuous stock tab binders, folders, receipts