Didn't know that there is this thing called "Dry Shampoo" until I read on XINMSN that Gwyneth Paltrow uses it. Seems very popular with the Europeans, 'coz they have lighter colour hair.
So I was curious and surf through Wikihow to find out more. It's good for camping, confinement and save water. Can use corn meal, ground oatmeal, semolina flour, cornstarch, talcum powder, large grain salt or baking soda. These are very easily available at home. Of course, I will choose to use talcum powder because it smells nice.
I would like to try it someday though my hair will be full of powder and I would want to dirty my pillow. Just want to try out how effective it is.