Bookmark the checklist after you make any changes to save them (switch to catagorized list)
Credit where credit is due: a great big THANK YOU to reddit's Traviscat (and the Reddit Metal Earth Model List he's maintained, which has been a great source of information for obscure and limited release models, as well as a place to gather links and sheet counts quickly for the latest update to this list), Instagram's @turcicus (who has clued me in to several of the Disney Parks Exclusives), and the various people who have humored and helped me when I asked them to check on Model Numbers when I've seen that they've posted a build I don't have the number for. This is a great family/community, and I'm glad to be a part of it.