How do I process a sale quicker in quickbooks?

We are tired of the help quickbooks provides...We have the non profit edition of quickbooks premier 2009, and as a test we wanted to sell a .50 snack to our boss. What we needed to do was create an invoice, then move to receive payment. All the exiting and entering of different menus and the time it took to connect to our digital merchant service meant that a line of 5 people wanted to purchase things will end up taking around 15 minutes, and it's not going to be pretty during our heavy traffic times...anyone have any tips?How do I process a sale quicker in quickbooks?
Quickbooks should not be used at the point of sale. All information for Quickbooks would be entered after the fact. What you need is something that will record your sale and store it for your bookeeper to enter at a later date. Small sales of .50 should be grouped together as micellaneous and entered as 1 transaction.