I pull with organic sesame every morning and in the afternoons, perhaps every several afternoons, I pull with coconut oil. I was also brushing with IP6 perhaps once a week. About two weeks into oil pulling, the stains LITERALLY fell off my teeth. I'm so not kidding.
When I had a sinus infection, I did a few drops of oregano oil in with it. Lately, I've tried a couple drops of cayenne oil in with it. A friend of mine adds a few drops of tea tree to it.