Totally agree on preschool being good for them JM. I've noticed that since he's been going that he seems so much more like a 4yo than a 3yo kwim? He's grown up a lot. As for car tetris, all I can say is thank god for a 60-40 split fold seat LOL. I put him on the single seat and folded the double one down.

Don't worry too much about the night training. Some kids aren't night trained for ages. I've been incredibly lucky that all of mine night trained really easily and none of them were bed wetters.