<human>:  How can I improve my home security without investing a lot of money?
<bot>: One way to improve the security of your home without investing a lot of money is to install motion-sensing floodlights outside your home. These lights will alert you and your neighbors to any motion that is detected outside your home. Additionally, you can install alarm systems that notify you via mobile app and sound a siren in case of an intrusion. You can also invest in window locks, and deadbolt locks, which are relatively inexpensive and easy to install. Finally, you can speak with your local police department to learn about any free security programs they may have.