jawbone
One of the funniest (and best) how-to-be-a-consultant advice I received from my friend H. was "Don't flush the toilet when you're on a conference call." I need to send her this device.
As described to me, this little gadget cancels all the background noise. So the person on the other side can't tell if you're in your car, at the airport, or other places you shouldn't be when on the phone... I placed an order and cannot wait until it gets here! (via roelof)
