Well I use a very detailed inventory program, Peachtree. When I get stock in I add that. When I make a candle I add that as stock. I have everything i make broke down by, ie how much f/o a 16oz candle takes, wicks and so on. When I make a candle it automatically pulls inventory away from the other stock like dye, wicks, f/o and so on. I'm not going to tell you its an easy program to master but when you do you will be able to keep track of everything and the IRS will love ya if you ever get audited. Hope i made sense here..