Sally, is it possible for you to gate off your entry-way so that neither child or parent can leave that area when it's time to be getting dressed and leaving? I've found that's a great way to prevent them from re-entering the rest of my house when it's time to go. With families who are prone to this, I will also stand blocking the way, using my body position to convey that going past me is not really an option. But the gate is a super easy method of maintaining the control over who enters and when.