We never were "hard-core" ec'ers, but my son was fairly regularly using the potty for his first 6 months. It was obvious he understood what the potty was for and how to go. Then he started resisting us, so we dropped it almost entirely- just a few catches here and there. Now he is 18mo and showing interest in sitting on his potty and stories about the using the potty. He will sit for a VERY long time - like almost an hour, while we read him stories. But, nothing comes out, and shortly after the diaper is back on he goes. Any tips for helping him to remember how?