Knowing a person's hair preferences can take all the fuss out of holiday shopping, too. There are plenty of hair gift sets that address the needs (and wants!) of everyone on your list — from your rainbow-haired BFF to your aunt that never skips a silk press . So, the next time you're stumped about a gift for someone, pull up her Instagram, check out a few pics of her hair, then add one of these gifts to your cart.