You can print separate books for your quotations, invoices and receipts.  This keeps your quotes, invoices, receipts and other forms neatly separated in separate books.
To save some extra cost of printing, you can combine some forms in the one book. For example, you could write up a quotation that becomes an official invoice once the customer accepts the quote. The same piece of paper could also serve as a receipt once paid. It’s all in the wording used on the page. See our free templates.