I have a client was more involved with his company in the beginning and would use the item list of expenses to keep track of the inventory. Problem is, he hasn't been doing it this year. I've been finding it difficult to itemize all the inventory on the receipts as they are not very descriptive and I'm not a mechanic. Is it possible to add an inventory item for "general materials" that I can put all the inventory items that are unknown to me in and then adjust it at the end of the year? He still wants to put the individual items that he uses on the invoices. Is there a way this is possible to keep track of his mark-up?