One of the latest trends in technology is the creation of personal robots to help people with day-to-day activities. Some companies are testing driverless robots to bring food and other products directly to customers. One such service is already operating on the streets of Washington, D.C. Starship Technologies launched several self-driving robotic vehicles in the city earlier this year. The six-wheeled electric machine sits about a half-meter high. It has a box to carry small groceries or food products, up to nine kilograms in weight. Users can order the robot service through an app a software program -- on a smartphone. The food or other things remain safe and secure inside the vehicle until the consumer orders the app to open the compartment.