When you go shopping, do you buy things for yourself or your dog? A lot of parents say that shopping for their baby comes first, and they overload the POS systems at all the local kids’ shops.  It is just the same for a dog owner, in my experience.  I would go shopping for clothes for myself, but I lost interest.  The pet shops just called out to me and most of them have very good POS systems, allowing the purchases to add up quickly. Things get difficult when your chosen item caanot be read, or has no bar code on it.  A lot of people get annoyed at having to wait for the correct code to be found – that is when you decide whether you really wnated to buy the thing at all.  In my own small business I have no POS system at all, which means I can only have highly trusted people working for me.  Otherwise I am open to theft and embezzlement – that is the key advantage of having proper sales systems.