What should I pay attention to when going to a hotel with my girlfriend?

Don't let your girlfriend go alone, at least two people should go together. Book a room in advance. Don't go without an appointment, lest others take it away. Bring your ID card, or you won't be able to open a room. Take enough money with you, or you won't have enough money. Take some necessities. You'd better bring a suit, otherwise it's inconvenient. Take enough water, or you will be thirsty. Take enough paper in case there is no place to buy it after use. Don't bring some bad things, such as cigarettes and lighters.