Expert/company advocating this approach (if applicable):
Parent

Description of method:
At 2 1/2 my son does well 'most of the time'; however, we still have the sometimes more than occasional accidents in both BM and PEE. I feel I probably remind him too much and have caused some resistance instead of letting him decide for himself (although in daycare, they have set routine times and always ask) but when I don't, he will forget, especially when he is 'busy' concentrating on other things.
I have found the poster/chart and sticker system to be of great help. He gets to place a sticker on a seven day calendar and choose an activity he enjoys. Once all seven are filled for each BM and PEE (1 week), he gets a big boy prize.

So far we are doing just great!

This has not helped in keeping dry though the night so maybe we should add a third column to our calendar.

Recommended age for this method:
When they show interest.

How long should it take for child to be potty trained by this method?
Approximately 2 weeks.