I always scope out where the bathrooms are and in the early stages, I had the training potty in the car. We started having her go on the hour and then two hours. It may be different from one day to the next. Always have clothes for just in case as she wears underware. When we travel we put a pull up on but still get her to a potty. She is 4 1/2 and we have her having bm's during the day and just need to have her not voiding at night. She wears night pull ups. This year when preschool started she is more in control of all of her bathroom needs. Still having one accident a week on occassion. This may be due to everything we do each week.
Just go with it, and I also have her car seat padded with a plastic bag and towel to prevent it from getting the car seat wet. I could probably remove that at this time.
Good Luck
J. R
I sell Usborne Books and We have a few Potty training Books.(Baby's potty , and Potty Time). You can check out my site at
Ubah.com/T2267