Smartphones are working their way into every part of our lives, and the newest offering, the
August Smart Lock, lets you leave your keys at home. With a swipe of your phone, or even just by approaching the door, it unlocks for you. Beyond that you can set your lock to allow others access via their phones either permanently or for a specific amount of time. Got a delivery coming when your not there? Just give the delivery person access via their phone. The August Smart Lock also keeps tabs on who enters and when. It is supposed to be coming out later this year, and the price tag is a relatively modest $200.