I know how to buy cheap beer; but how do you do this
Shred a bar of Fels Naptha soap ($1 ea) with a cheese grader, add to a pot of water and simmer and stir until the soap is completely melted. In your 5 gallon bucket, add 2 cups of washing soda, one cup of borax, and a half cup or so of baking soda to another two gallons or so of hot water. Mix in the melted soap and water and add hot water (stirring the whole time) until the bucket is almost full. It will turn to a gel. Stuff is not only cheaper, but 5x more effective than store-bought stuff. Find all your favorite work shirts that start to stink the moment you go outside (you know the ones) and wash with this stuff. If they still stink, I'll buy you a box of Beast Light.