What people want: Quality advice from educated experts.
What people will get: Debatable advice from a girl with chip crumbs on her chest.
Since the invention of Dry Shampoo, how often do you really need to wash your hair? Just never. It is so much work to wash your hair with regular shampoo. They expect you to lather, rinse AND REPEAT?! Who has time for that? No thank you, I will just spray some weird substance and scratch it through my scalp and watch as the oils vanish and repeat that until my hair starts to hurt from being so so gross.
Once your hair gets greasy enough, it will hold the style with it's own natural grease instead of needing to add hairspray to it. Also the dry shampoo you used to try to tame it will likely give it enough volume that you will be all set.
Styling is your hair is bad for you
If you do your hair nice one day, than someone will compliment you. Then the next day and the day after when you resume regular activities and tuck those greasy strands behind your ears you will be sad when you no longer receive praise. Save yourself those feelings of hurt and rejection, just never style it to begin with.
Tousled Waves Are In Style
Some call it tousled, I call it "An Excuse to sleep with wet hair and leave your house without using any hair appliances". Rock that rat's nest of a hair do and if anyone asks claim you just left the beach.