Interesting post from Michigan State University Extension- "I read in a newspaper article that I should mix some baby shampoo, ammonia, beer, and some corn syrup in a 20 gallon hose end sprayer. Really? What are these ingredients all about and how could they possibly work on a lawn? Baby shampoo could serve as a type of surfactant that could reduce water repellency in the soil – if that’s a problem for your soil. Ammonia is a source of nitrogen. Beer and corn syrup has some sort of natural organic fertilizer or biostimulant. For the beer, I’d buy the cheap stuff – not the microbrews. The final comment about mixing in a 20 gallon hose end sprayer? How many of you have a 20 gallon hose end sprayer, and how many of you could hold a 20 gallon hose end sprayer? OK, go to your favorite store and ask them where the 20 gallon hose end sprayers are, really!" – Michigan State University Extension