To avoid robbery scenes like those in ‘Home Alone’ or small housing catastrophes we made a small checklist before you go on vacation:

1.  Run your garbage disposal

2. Pause your post

3. Unplug unused appliances

4. Turn off your water-main valve

5. Practice proactive landscaping

6. Park a car

7. Move your spare key

8. Randomize your lights

You’ll find more and more detailed advice in the article on ThisOldHouse.com:

Things to Do Before You Leave for Vacation