Arrange for your lawn to be mowed if you are going away for an extended time. Check your locks on doors and windows and replace them with secure devices as necessary. Pushbutton locks on doorknobs are easy for burglars to open. Install deadbolt locks on all your outside doors. Sliding glass doors are vulnerable.
Special locks are available for better security.
Other windows may need better locks. Check with a locksmith or hardware store for alternatives. Other precautions you should take. Make a photographic or video record of valuable objects, heirlooms and antiques. Your insurance company can provide assistance in making and keeping your inventory.