For Sonicare toothbrushes: The Sonic Seal is made from 100% glow in the dark silicone. It seals those nooks and crannies where mold, bacteria and saliva leak into the replacement heads. $9.99 for a 3-pack.
USBCELL: the NiMH AA cell can be used like normal battery & recharged by plugging into a USB port. 15 billion Alkaline batteries are made and thrown away each year creating toxic Landfill. USBCELL offers a eco-friendly alternative.