If the Closet Auger, Plunger and Dish Detergent Failed to unclog your toilet, try this!
I used the auger, plunger, and the dish soap resulting in a number of failed attempts. As I read several home improvement books online, the note that stuck in my head was entitled, "how to check if the upper flush holes are not clogged, by using a mirror". These holes are located out of sight, in the upper portion (underside) of the bowl. Anyway, if the goal is to maintain a good seal so that you can obtain the force needed to unclog the toilet, I suddenly realized that every time I thrust the plunger, more air was being directed from the upper flush holes, than the lower portion of the bowl. This decreased the force going into the desired location (lower portion of the bowl).
Solution: I took a clear plastic bag, cut a hole in the top, placed the handle of the plunger through the hole, to help prevent anything from splashing from the bowl, and I tucked the remainder of the plastic bag under the underside of the toilet to block some of the upper flush holes.
Despite not being able to block all of the upper flush holes, the few I did effectively block were enough to strengthened and re-direct the force of air going into the lower portion of the bowl, where the plunger was placed. Instantly my toilet was unclogged!
By majorshadow from San Diego, CA