I have long hair naturally and wear clip in hair extensions to add volume/length too. I have shorter pieces of hair at the front which frame my face (like a middle parting) which looks great when I backcomb and hairspray but if i dont keep brushing and backcombing throughout the day they 'clump' together and look greasy and the volume in my hair drops. Any product recommendations for keeping volume in the hair all day and to help my nice hair do last more than an hour?!