My step mom was a nurse. She used to mix equal amounts of hot water and hydrogen peroxide (so it was warm and not as harsh) into the bottle cap and then have me lay on my side while she poored the mixture into my ear. I would lay there for about 5 minutes on my side and then wipe it up with a towel and do the other side.
It really tickles but it works. You can feel the bubbles working and removing the bacteria as well as the ear wax.