If there's one hair care secret I'd like everyone to know it's this: you don't have to spend a lot of money on shampoo to have healthy hair. True, there are great salon and high-end shampoos out there, like any of these that are more than worth their price. But, for most of us, we can get along just fine using a quality drugstore shampoo.

Please note however that I said a "quality" drugstore shampoo. Because plenty of them just aren't good enough for your hair. Take, for example, the shampoos below. TotalBeauty.com readers tried them and found they left their hair dirty, dry or greasy -- ugh! Peruse the products here, and toss any coupons you may have for them, they're totally not worth it.

• So you've seen the worst, now it's time to check out the best (break the coupons back out, you'll definitely want to buy these).

• Already bought a shampoo on the worst list? Salvage the situation with a top-notch drugstore conditioner, like one of these.

• The savings don't stop there. See the best cheap-but-great hairstyling products here