The other day, my new toilet was plugged.  So, in keeping with the time honored tradition of toilet repair, I got out the plunger.  But, to my dismay, I discovered that while the plunger was round, the toilet drain was oval.  So, every time that I plunged, the water just squirted out the sides of the plunger instead of down the drain.

Seeing that plunging was going to be pointless, I dumped a half gallon of liquid drain cleaner into the toilet and let it sit over night.  The next day, the blockage cleared with the first flush.

While using liquid drain cleaner is a bit expensive, it did the job.  I will have to see if I can find a different plunger.