sc,
Interesting project, good luck. For me, I found it a hassle to type in the name and quantity of each blend/tin. Perhaps an active list above/side where one could click on say a C&D button, then click on tin or bulk, then click on number of tins or ounces, and zippo-zappo it's added to the cellar.
Add to this a 12 month abbreviation list and list say the 20 years leading up to present, and one could date it with two clicks. Cost might have to be typed in, but if it could be personalized by each of us with a dozen or so of the most patronized sites/B&M we each use?
Finally, a series of links/buttons that indicated something like it's in for a long time to age, not trade/sell; and a second indicating it's an active smoking jar (perhaps including if samples can be included in possible trades?) and finally a button indicating that it might be for sale or trade?
Just some rough, un-thought-out ideas (like I've never had those before!)
Natch