Has potential, but the main drawback IMHO is having to add the items in the db. I tested it out and find it not very intuitive. Maybe a way to scan a db and provide a list with subcategories that can be chosen to cut down the time and extensive data entry by manual means. PzDB had potential, but not updated or anything now. Pity.

P3DO works but also needs a better way to categorize and scan a db too.