Efficiency
Flo can carry two items at once. You can save time by making sure she is carrying everything that is currently needed instead of making two trips. Tap on one action after another to queue them up. Flo will complete the first item, the move on to the next one. You can queue up to about five actions, however because they cannot be canceled be careful not to make any mistakes. If you have more customers than you can handle, leave their tip on the table. This will allow you a short breather, as a new customer will not show up until the tip is collected.