What do you use a database? Proprietary software, Vintec spreadsheet or your own invention?
I use Winebase: WineBase - Wine Cellar Inventory Software
Daver6 uses something else - web-based and free IIRC. It looked pretty good, but I'm already set up. It is mentioned on the wine thread, but I'm sure he'll step in here in remind us of it. Otherwise PM him.