We used to have quite a time trying to clean Kairi's ears, then one day when we went to clean them they were spotless.
Another week went by and they were still clean!
Then one day while laying in the pool, I looked over next to the gate. There in the shade were my two dogs, Patches and Kairi. Turns out the whole time Patches had been cleaning Kairi's ears.
To this day, I've never again had to worry about Kairi's ears. It's very amusing to be sitting in the living room and see Kairi stroll up to Patches, sticking an ear in her face. Clean clean clean! Kairi then gets up, circles around Patches and sticks the other ear in her face. Clean clean clean!