DD is 2.4 and has been using loo/potty for ages, but not consistently as I haven't pushed it. I wanted to wait till summer (ha!) but don't want to leave it too long. Car journey to Nursery is 40 mins each way 4 days a week with DH. He already finds it stressful, so I worry about adding PT to the mix. But we don't have a restful summer holiday to try it out at home (it's my busiest time at work). So am dithering. Any advice about PT and the car?