Different things have worked with my 2.5 yo son and after a while the misbehavior starts to show and now I follow another strategy or one of the older ones. What is currently working very well (and is making him act almost like a model child lol) is letting him be around the house as he pleases. My daycare is in the main floor and it is all gated to separate our private spaces from the daycare area. He is the only one allowed to go to his room, play anywhere outside the daycare area or inside if he wishes with the other dck. The first day I did that, besides behaving very well he told me several times he was happy.