Micro Center offers the Samsung SmartThings Home Monitoring Kit for $74.99. Opt for in-store pickup to avoid the $5.99 shipping charge. That's tied with last month's mention as the best deal we've seen and the lowest price we could find now by $33. It allows you to control and monitor your home via your smartphone. It includes a SmartThings Hub, motion sensor, two multipurpose sensors, and smart outlet.
Making even one of these mistakes can easily cost you tens of thousands of dollars.