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Shopping online is often popular with people who have a busy lifestyle. People are able to **order** their necessary and luxury items from the comfort of their own home, or even on the **move**. Delivery is usually free and items are often cheaper than in **shops** on the high street. The only real problem is that the item description and **quality** may be different from what they hoped for. This could mean the **customer** may become disappointed with the item they receive and will need to return it at their own cost. People who go to shops to do their shopping often use self-service payment machines. This **usually** saves time as the shopper does not need to join a long **queue**. However, it can be frustrating when the machine has a problem and the **sales** assistant is not always available to help.