The Spanish design firm Kawamura-Ganjavian came up with this toothbrush design, which may be really handy to airline travelers:
The ingenious feature is the handle, which works like a cross between a syringe and a deodorant stick. Fill it up with toothpaste, then when you're ready to brush, twist the bottom a few notches and toothpaste squeezes out the bristles. A bonus: The clear plastic handle indicates precisely how much toothpaste you've got in there, so the TSA won't fritter away your time -- and everyone else's -- investigating whether you tried to sneak in a few extra ounces.
Obviously, the design is super convenient for travelers, but it's also something of a boon to the environment. Think how much waste people could avoid by not buying those all mini toothpaste tubes they use once or twice, then throw away.
Link via DVICE | Photo: Kawamura-Ganjavian