The 3 day method is just like training a puppy. You walk your child to the potty every 15 minutes, all day long for three days. Yes, it's a commitment and most people will need to clear their schedules to do this. Cut off all liquids and snacks after dinner while potty training. At nighttime, you'll take your kid to the potty one last time and then wake them up halfway through the night to pee.