"Hold the phone up to your other ear."
Sounds easy enough. So far, 2 hours in and I have had a little trouble fighting my natural instinct to answer the phone to my right ear. It doesn't help that the phone is on the right side of my desk. I will relocate it and see if this helps.
Go ahead and try it yourself. The next time your phone rings at home, work or even your cellular, take a second to pause and consciously place the phone to your OTHER ear. See how many times you can pull this off today. I've found that having something in your right/left hand will help prevent you putting the phone to that ear. :)