There are times when all the plunging in the world won't unclog a toilet. That's when you need to bring in the big guns. Luckily, "the big guns" consist of something you have sitting in your kitchen: dish soap. Dish soap acts as a lube to make the clog slippery so that it will slide on down the sewage line.
To get things moving, squirt about 1 cup (8 ounces) into the toilet and plunge the toilet a couple of times to work the soap down into the clog. Let it sit for around 15 minutes.
Don't be surprised if you hear the sound of flushing before the 15 minutes is up. It works pretty fast.
If it didn't work, plunge the toilet a few times to see if you can work the dish soap into the clog a little better. The clog should pop out and make its way down to sewer town.
Now, this will only work if your clog consists of toilet paper. It won't work if your toddler throws Legos in the toilet or if you're trying to flush old photos of your ex after too many glasses of wine. In those instances, you may need to call a plumber.