Almost two-thirds of burglaries involve forced entry, which is partly due to weak door locks and mounting hardware, according to Consumer Reports.
To bolster locks, replace the strike, a metal plate mounted on the door jamb that the lock bolt slides into. For about $10, you can significantly strengthen the flimsiest of locks.
Another way to improve your door's kick-in resistance is to replace short mounting screws with 3-inch ones that reach the door's studs.
But burglars don't always break their way in. Sometimes, homeowners let them in through the front door! Installing -- and vigilantly using -- a peephole is an easy way to avoid this dangerous mistake.