After taking stock of my mother's beauty items, it occurred to me that she always buys coordinated shampoos and conditioners. Even if she changes brands, she still shops in pairs, and amazingly enough, she goes through each item at a pretty equal pace.
I, on the other hand, have several mismatched hair-care products in the shower that I use according to how my hair feels that day. And funny enough, I always use more conditioner than shampoo. What is your purchasing pattern for hair-care products like?