Do not Keep Your Keys Next to the Door
Doing this provides a thief with easy access to valuables like cars. It is also not advisable to keep your keys in the ignition or in the vehicle itself, even if it is in your garage. This makes it effortless for them to have a field day with your car(s) – and to drive off into the sunset along with everything else they’ve stolen.
You can keep keys in well-hidden safes and other locations that are out of plain sight and less ‘obvious.’ You do have to remember where you’ve put them yourself, though, so you can drive when you come back.