Did you know you could be using too much laundry detergent? I worked for the company with the biggest laundry detergent brands in the US, and it was a poorly kept secret that people use too much laundry detergent. They didn't exactly mind, as it would drive up sales (why do you think the caps on your Tide bottles are so big?).
According to Lifehacker, apparently using too much detergent is not only bad for your wallet, but it could also be bad for your clothes and your washer. Check out this great article from Lifehacker, and save your clothes and your money!