4. Their Checkout Is Super Fast
Since Aldi only has a very limited number of employees, it strives to keep things running in a very controlled and efficient manner. They do this by ensuring customers get their shopping done as fast as possible.
Essentially, their policy is that people should come in, take what they want, pay for it as quickly as possible, and get out. To get this done, they have incorporated various things, including placing multiple barcodes on an item so that the cashier can quickly ring the item in, and extra-long conveyor belts.