When a purchase order was brought to me to be signed, I whipped out this screen to record the details.  This allowed us to print reports showing funds already committed but not yet invoiced.  An added benefit of this screen was the ability to start tracking requirements for maintenance contracts, both hardware and software.  For many items, there was a warranty period, after which a maintenance contract would come into force.  This screen allowed to record the amount, as well as the date on which the maintenance cost would begin.