How to Pack a Suitcase
Most people take big suitcases when they travel because they do not really know how to pack. The first mistake that most people make is this: They fold their clothes. However, clothes should not be folded. Instead, they should be rolled up like little sausages. When clothes are rolled up, the amount of space needed is significantly reduced. In addition, unlike folded clothes, rolled clothes do not look messy after unpacking them. The next mistake people make is that they bring too many clothes, and especially, too many shoes. Most people do not need more than three pairs of shoes on any trip. It is best to wear the heaviest pair and pack the other two pairs. Most suitcases are too heavy to carry on a plane. Be sure to use the space inside each shoe to pack small items, for example, socks, gloves, sunglasses, or small electronic devices. Finally, people should think about the trip before they start packing. They should ask themselves, “What will I need first? What clothes will I need later in the trip?” The items needed at the beginning of the trip should be packed on top. Following these suggestions for packing will make any trip easier and more enjoyable!
Which sentence does not maintain the unity of the paragraph?