One thing is consistency. Kids need to know if they do x then y is going to happen. That being said, 4 year olds have a lot going on with them. They are not babies but can't do all the things big kids can do. Time outs worked best for us. I would set a timer and when the timer went off he could get up. Taking things away for any length of time, the kid forgets why it was taken away. We have had a harder time of things as my son is autistic but consistency is what works best.