From now on, you simply make another folder as the need arrives and you're files will always be easy to maintain. A computer organizes its information in the SAME manner. Yes - bookkeeping is a very simple process. All you have to do is keep the system going. For instance, every order that I process, I completely finish before moving on to the next order.
Mail is received and opened.
As each piece is opened it is placed into individual piles. Orders with pre-payment are placed in one pile, information and daily correspondence in another, and so forth. We record all the information that was written on the envelopes during the processing of the order. As your business grows, your understanding and abilities will grow also. At that time you can grow into a more sophisticated means of keeping the books.