A high-tech toothbrush? Well, this design definitely made us take notice, and we think it deserves a spot in home technology. The Brush & Rinse allows you to do exactly what it's name implies, just add water. It's designer, Scott Amron, frustrated by the "sloppy and wasteful" means of rinsing our mouths, has created a toothbrush that when held a certain way creates a fountain-like stream. Let's hope someone picks up this design and sells them at $3 a piece like Amron recommends. If you can't wait until then, you can buy one of his prototypes for a mere $1750.