Unfortunately, I keep a spreadsheet for everything.
-A complete handloading log.
-Tracking sheet for pewter. Where I bought it, how much I paid, weight, cost/lb, etc
-Wheelweight sheet. Where they came from, total weight, cost, percentage of yields, total yields.
-Inventory of every reloading component I have (comes in handy when you think you have something, but not sure)
-Complete log on every firearm. Dates fired, rounds fired, total rounds fired, what ammo was fired.
Yeah, I know what all of it costs. And I can see that I have a lot of components I need to put together into live rounds. LOL.