I wish we hadn't arranged our travel plans to maximise park time at the cost of sleep and convenience!
We set off at around 5am (!) to catch our train on the first day so we could arrive as early as possible, and left quite late in the evening of the last day - needless to say, we were exhausted with all the travelling. The first day we were just too tired to enjoy ourselves, and the last day was a bit of a wash out due to not being able to go back to the hotel for a rest in the afternoon, luggage concerns, keeping an eye on the clock, etc.
This time, we're having a stopover in Paris the night before so we can arrive early without having to lose a night's sleep, and we're leaving after lunch on our last day - much more relaxing!