An estimated two-thirds of American adults plan to vacation this summer. If you are one of them, here are a few things to keep in mind as you prepare to get away.

1  ) Put a hold on your mail. Mail stacking up is a good indicator to people that nobody is home. To be on the safe side, have your mail held at the post office until you return.

2 ) Check for travel alerts / warnings for your destination from the State Department. The world can be unstable, and sometimes dangerous for visitors in certain places. Make sure the risks are minimal wherever you are going.

3 ) You may not need a passport. A passport card is more convenient and less expensive than a passport book. It can be used for non-air travel to Canada, Mexico, the Caribbean, and Bermuda.

4 ) Be careful online. Announcing your vacation via social media channels also tells people you aren’t home, and makes your house vulnerable.