According to a new survey from The Soap and Detergent Association (SDA), 28 percent of Americans say they have mixed their own cleaning product at home. When asked what was the most important factor in deciding to try and make their own concoction, those who did so said they believed it was safer to know what was in the products (38%), they believed it was cheaper (38%), or they believed it was more effective (28%).  “When it comes to making your own cleaning products, consumers should thi...