No more stumbling about in the dark to go to the bathroom: startup company NightGlow is marketing "glow in the dark" toilet seats. The toilets come in blue and green and stay lit up for eight hours after a charge from any light source. The company - which says the seats are perfect for kids, seniors and more, is using the motto "Light Up Your Life, Light Up Your Toilet" - and for interested parties also has its own Twitter feed.