Want to know what you have worked and confirmed?  Curious about what you have not worked.  With just a few clicks, you'll easily see the big picture but with a lot of detail.  DXbase tracks numerical data for Countries, CQ Zones, IOTAs, US Counties, Gridsquares, WPX, and a lot more.  You can even choose to include or exclude those entities in deleted status.  You can also obtain a printed list based on the band, mode, and confirmed status.  Just click the buttons.  That's all there is to it.  DXbase provides a similar screen that contains the VHF/UHF bands.