I consider my cellar to be all sealed tins, and bulk tobacco in jars that I’m either aging or just not actively smoking out of. I have a very detailed spreadsheet that I carefully keep up to date. I keep the cellar in covered plastic bins, not only for organization but also to keep sunlight away from the jars. For my current smoking rate, I have something close to a lifetime supply. However, I don’t smoke that much, so that’s not much compared to what some other members have stashed. While my spreadsheet is up to date, it does not keep track of what bin a tin or jar is in. I’ve got them allocated roughly by time of acquisition. While not perfect, I can usually narrow that down for a particular tin to 2 or 3 bins and I’ll find it fast enough. Adding bin location to my spreadsheet may be a worthwhile project someday.