What are some secure travel tips?

You haven't said where you are planning to travel. If your main concern is security, I recommend Disneyland. It is quite secure.

There are, at this time, many places in the world that are not safe for tourists. Avoid Muslim insurgencies.

You may become ill while travelling. It is useful to have medical insurance specifically for your trip.

Don't smuggle drugs. It's very dangerous. If you are visiting a Muslim nation, alcohol counts as an illegal drug. Don't bring any. According to the secure travel tips you should always wear a seat belt. You should also always remain seated while the vehicle is moving.