The process to find and purchase an item are within 5 clicks on amazon.com.  If one knows what they are looking for all they have to do it type the item in the search bar.  it should then be as simple as scrolling through the first page and finding what the item is.  Then the item is clicked on and it takes oneself to the product page where there are reviews and specifications.  Then in the upper right hand corner there is an add to cart button.  If one is already a member with their information saved it is then two clicks away.  Once in the cart all that has to be done is to click checkout and it then goes to a payment information page.  If the payment information is saved and has not changed all that is needed is to click order and the process completes.  A lot of work had to go into making such a simple process.  It can allow someone to buy a product in a minute or two if they know what they are looking for.  After that it sends a confirmation email.  This process is very easy and is probably a reason as to why amazon is so successful.  To offer such a streamlined process is what makes customers keep coming back.