Many top-of-the-line home security systems also come with top dollar monthly fees. Luckily, there are self-install systems that can safeguard your home without adding to your bills. One such security product is the SABRE Wireless Home Alarm System. It can monitor up to eight distinct zones in the house, which means that in the unlikely case of a break-in, the alarm system can point homeowners to the precise part of the house the intrusion occurred. Available on Amazon; $83.