A year after, American janitor James Murray Spangler, created an electric version of the vacuum cleaner with the use of a fan, a bax and a pillow case. This seems simple enough but it really worked. When Spangler sold the idea to his cousin Hoover, the company Hoover Harness and Leather Goods Factory produced the device. But if the individual does not have time, the store can go to the customer. Companies such as Electrolux or Kirby, has been doing this kind of business for more than 40 years. The marketing strategy used by these two companies is quite unique. Agents go house-to-house showing of the Kirby product line and after doing a free demonstration are able to impress the homeowner into buying a unit. Also, if you are tired of maintaining a place for your vacuum cleaner, hiding it somewhere so as not to block traffic passages, much more if your residence is not large enough to allow many things inside, you have a second thought of converting it to a better and more artistic area, with the good idea to think of covering your vacuum cleaner instead of setting it aside. This makes the customer not only buy a vacuum cleaner but also other things that will work well when the homeowner is cooking, doing the laundry and cleaning around the home. Hoover is another household name people can never forget. This is because of the number of years it has served the customers well. There are some upright vacuum cleaner models that are equipped with an Inteli-Clean System that can automatically detect cleaning needs on different surfaces and adjusts the cleaning power to provide you with more efficient vacuuming. These vacuum cleaners are also equipped with an infrared sensor that can indicate where to focus your cleaning effort in order to remove embedded dirt. - Electrolux ProntoTM 2-in-1 - a model feature that allows you to reach anywhere. It has a 180-degree swivel head that allows cleaning anywhere around and under. Price: $99.99. - Electrolux Trilobite a robot vacuum made on a three sound navigation, and has three cleaning modes, the normal, the quick, and on the spot vacuuming.