D.B.
You'll see a million techniques and opinions on this. I think most of it has to do with luck and the kid's personality/development. I had the little potty out around age 2, and i got a couple of those board books about using the potty. We just read them along with other books, to introduce the idea. Then I waited for my son to be interested, which he was intermittently, but he didn't have the body control until he was on the older end. Lots of things helped a little, like watching other kids do it, watching his father pee in the toilet, using targets in the toilet, but nothing really clicked until his body and brain connected and he had the "I gotta go" feeling. For us, being naked or being wet didn't work at all. And it's not like we kept changing techniques every few weeks. We went from age 2 to nearly age 4 with this. If I were doing it over again, I wouldn't get so frustrated and I would just repeat to myself "He won't go to kindergarten in diapers, he won't go to kindergarten in diapers." I'd be more content with all the things he WAS doing.