I'm new to this potty training, but I'm going to be starting soon with my almost 3 year old. I have a small potty at home he uses at times.. I guess I need an actual attached seat too maybe for downstairs. But what do you do when you are somewhat potty trained and you're out and need to use bathroom? The toilets are big.. Do you bring something with you that fits on seat? I really have no idea. My son is afraid of big potty.. And wouldn't fit anyway. Thank you!!