Multiuse Gazebo Screen House or Event Shelter: Add the living room or office for full-time RVers or van dwellers as well as a way to escape the heat and bugs for regular campers.
For some people, more simple measures like turning their computer off or leaving their phone in another room for a designated amount of time will effectively reduce screen time.
But if you want to boost your bottom line, consider renting by the room. This can work whether the home is your principal residence—meaning you live in the home—or if it's an investment property.