A - Go easy on products, they can weigh your hair down, so apply them gradually over the next few days as your hair naturally get dirtier.
Monday: Blow-dry hair using just a heat protector,
Tuesday: Smooth flyways with a serum,
Wednesday & Thursday: Sop up excess oil with a spritz of dry shampoo on the roots,
Friday: Break out the actual shampoo and wash your hair.
Hope this helps :)