Hey do you ever suffer from skanky hair? Do you need to try and eek it out an extra day knowing its just a wee bit too greasy but do it anyway? Well you need dry shampoo. Just spray on and you'll never the difference. No shit Sherlock. Just don't do it in a rush or too close to your head or you too could look like Morticia Adams crossed with the Mallen Streak.
Please also be aware that when you do wash your hair that your colleagues think you have been to some expensive salon due to the massive transformation of skankiness to foxiness. Insulting really don't you think.