Alarm clock: It tell the time and it prevents you from remaining slept in the morning and arriving late at work or an appointment.
Mobile phone: Is good for business people and for the other who need to be in contact with his friends, familly and It can you save from dangerous situations.
Remote control: you can change of channel, program, raise and lower the volume... all it without moving of the armchair
Microwave oven: You can warm up food, cooking without fats, prepare foods of fast and healthful way
Laptop computer: you can work from wherever and whenever you like, you need only to have connection to Internet and it’s not necessary to stay in your office if you don’t want.