Kindergarten
The biggest mistake parents make is thinking they need to prepare their kids academically for kindergarten. In lieu of academic preparation they should be teaching them self-sufficiency skills: how to open a juice box, how to walk down the stairs alternating feet, how to turn their sleeves inside-out and put their own jackets on. Parents should teach them how to listen carefully so that their teachers don't have to repeat instructions three or four times.
As far as their preparation skills, parents need to take the time in the morning to have their child put on their shoes themselves. Sure, it may take you longer to get ready to go to daycare, but practice it on the weekends. Or let them start to open the juice box, and if they can't finish it, fine. Step in only when you need to... Read more from expert advice on preparing for kindergarten in "3 Most Common Mistakes: Kindergarten Prep"