What works for stains on white clothing?

I don't know where people get off thinking that every common suggestion you see online works. Non-chlorine bleach does NOT work on brand new mild dirt stains or old perspiration stains, and neither does baking soda, white vinegar, regular bleach, borax, dawn dish washing liquid, lemon juice, or ammonia. I have even tried mixing baking soda and ammonia, to no avail. It frustrates me that every who asks how to get stains out of white clothing always gets one of the above as a suggested solution. I washed my new white denim shorts with some white socks. The dirt from the socks transferred onto the shorts and when I took them out of the washer the dirt would NOT come out with any of the products I mentioned. Does anyone have any NEW ideas that they've tried and work FOR REAL?