After five days we threw in the towel -- no pun intended -- and Paulina was able to wash away the week's residue. Maybe we could have made the blowout last longer, if we asked Paulina to avoid all of her sweat-inducing activities, but the goal of the experiment was to find out how to make a blowout last while still going about your daily life. Otherwise, really, what's the point? To thoroughly cleanse your hair of environmental pollution, build-up and grease, use a clarifying shampoo like Elucence Volume Clarifying Shampoo, $6. "After seeing how I could make my style last I've thought about straightening my hair on a Sunday night and wearing it to work Monday and Tuesday, so I won't have to think about my hairstyle," Paulina says. "Plus, not having to think about my hair made me spend an extra minute on my makeup. I would actually take the extra time to grab the bright lipstick and an eyeliner."