I use BD to, amongst various other things, maintain a specialist inventory of unique products. Some of these I end up listing on various auctions sites and I export the details into auction upload format. The one sticking point has always been selecting the listing category and I have been maintaining my own folder in DB with category details. And I have a button that opens up a look-up text file containing the categories when I want to create a new category on the fly in an item record.
Or .. any other suggested approaches very welcome!