There is an interesting phenomenon that most of the items we bought online are useless, Some of them looked very attractive online, but we lost interest in them at the moment of seeing them. As for many online items, there are big differences between the pictures showed online and the real items we received. Especially for clothes. They look really good on the models online, but they don't match us well after buying them. The online vendors try their best to make good advertisements which always give consumers an impulsion to buy their items. Base on the 1.4 billions population, most of the online vendors earn enough money. So,impulse purchase is very common online. The better thing is that some apps provides return services. You can buy many items once, then try them and decide which ones you really like and keep them. The ones you don't like can be returned without paying for shipping. It's amazing! You even buy your favourite clothes in many sizes, then try the best size for you.