My personal favorite for the longest time from when i was well lets not disscuss my age was a vibrating toothbrush...IT WORKS i cant tell you how many times i would sit in my room...and oh my!! To this day I still keep one just in case!!! The best one's are the toothbrushes with the spinning round head and moving bottem part!! I told my best friend when we were younger and both still have ours!!