We had two rules growing up in my house: If you're going to take a shower do it with whomever you're dating so you don't waste water and if you buy one for yourself buy six because everybody's going to want one.
When you see a fantastic colour or cut in a magazine perched up on some famous so-and-so's head it's tempting to ask your stylist for the same but do not be fooled. The hair in those fancy photos can be very high maintenance.