I'm not talking about water works or the electric company, sorry Monopoly enthusiasts, I'm talking about programs that help gamers.  Today I'd like to bring attention to a couple programs from a company named Wolflair.  
These programs are practically essential for gamers.  The first is Army Builder, it has been around for quite a while and has just gotten better with age.  While I've used Army Builder primarily with Games Workshop products like Battlefleet Gothic, Warhammer Fantasy, and Warhammer 40,000 (aka Warhammer 40K), this utility can be used with several other games.  Games like Flames of War, HAVOC, Warmaster, and several more.  Army Builder lets you create your army lists quickly and easily, and allows you to save them in multiple formats and print them for use during your games.  No more flipping through note cards, or scribbling down army lists in notebooks.
The second is Hero Lab.  If you play role playing games, then this is a must.  Through Hero Lab's unique license system you can have character and npc generation at your finger tips for any and all RPG games you play.  
Both of these programs are a must have for avid gamers.
You can get demos for both at the Wolflair site, just click on of the Army Builder or Hero Lab links on the sidebar, and try them out for yourselves.