i wonder if perhaps he is comeing down with something, sometimes kids are sick when we don't even realize it, that happens to me sometimes, the youngest ones will start playing up and then a day or 2 later they've got a cold or bug or whatever

All of the advice so far is exactly what I do with my 21 month old & all work. One thing I do do differently is I don't put him in his roomfor time out - I believe his room is for sleeping & playing & I don't want any negativety there. I have a spot that he sits with his back against the wall in the kitchen where he can't see any toys or tv. Good Luck, it will eventually blow over.

I agree.  Kids crave attention even negative.  Its hard but try ignoring him.  Good Luck.

Kastol

I agree with all the others but there is one thing i am doing with my almost 3yo at the moment is not time out but time in. I make her sit next to me and she has to be with me and cant do anything until she is well behaved. If i need to go to the toliet she has to come and sure enough after the 5th time she had time in she got the pict and now she will listen 98% of the time. Every child is different kids act out when bored or upset ect or just like mine bec she cant get what she wants or she wants something that her sister has.

Good luck Tee

It may sound hard but try ignoring the bad behaviour (unless it endangers himself or others) and only focus on when he is being good, give him lots of praise and tell him how happy he makes you when he does whateva it is he is doing... children like to seek attention and they don't care if they are getting negative attention. Just walk away where possible and tell him "Mummy isn't going to listen to you when you do that." Eventually he will get it. He will realise how much better it is when he makes mummy happy compared to when he makes mummy sad/angry.

Goodluck

i agree with th previos comment he probably needs more stimulation, have u thought about playgroup or preschool? sometimes at that age kids need to start to socialise to work out what other kids do with their parents, good luck!

it sounds to me that he may be bored!! have you tried finding activities for him to do even if it's helping you with the house work

My daughter started becoming a terror at that age and the only thing that i found was the things above that helped and she is now 5 and still helps with the house worrk and has grown to love it and can't get enough with the folding up