Did you forget to arm your system? Arm it remotely from your smartphone or another web-enabled device.
Get alerts on your phone whenever they happen.
Check on your kids or pets right from your smartphone.
Forget to turn the lights off again? No worries, you can turn those off from your smartphone too.
Does someone need to get inside your house? Don't leave them a key, just unlock the door for them when they get there.
Hate coming home to a hot or cold house? Adjust your thermostat remotely before you get home. This can also save you money on your energy bill.