Your rental property is empty, your tenant is deployed, or away for an extended period of time. You want someone to go by, enter the house and take a good look around to make sure it is safe and sound. If a problem like a roof leak or a broken window is found I will note and photograph the problem so that you can resolve it.
For example, Scott was renting his house to a bachelor on TDY for three months. Scott was little concerned about the pipes freezing during a cold spell. He hired a Scout to go by and turn on the sinks to a drip. After he emailed his tenant and Scout his Notification to Enter the property, the Scout went by to resolve the issue.