5. They are disrespectful to local behavior.
Do not be impolite. Stop rushing. Just spend some time enjoying your life. If you are always in a hurry and frustrated, then you will only spoil your trip. If you are from an area that is intolerant and too conservative, then work on improving yourself. You cannot be a good traveler if you do not accept other cultures and traditions. Open up to the world and try to understand how varied and interesting it is. It would be very wise of you to do some research and find out more about the country you are bound for. Think of your habits and, if you know they will be misunderstood abroad, try to get rid of them at least for a while. Respect the country and people living in it.

6. Bad travelers cheap.
Make your traveling experience as wonderful as possible. Do not turn it to hell by trying to save every cent. You might never come to that place again. Then make your trip absolutely unforgettable. This is especially important if you are a first time traveler. Of course there is no need to waste your money. Simply spend it wisely and do not restrict yourself to the very minimum. Pay for an excursion if it promises to be really worthy your attention. Saving money is hardly possible even at home. Traveling is never cheap and involves a lot of expenses anyways.