20 month old throwing things - please help - am going nuts

[timmette]

My 20 month old son - is normally pretty well behaved - but at the moment he seems to throw all his toys and nothing I do stops him, he's also not listening. He has timeout and afterwards does what I ask very easily, but I feel like he's in and out of time out all day. Whenever I want him to do something it seems like he has to have time out first. Please help any bright ideas.

Am in same situation, 21 month old has days where it seems all I do is tell him "No", "Down" etc.
Although, can usually track it back to lack of sleep/ teething or being cooped up all day.
Still doesn't help when at end of day you're left feeling like a prime candidate for Supernanny [shudder]

HAve a throwing 21 m/o. hes been a thrower since about 12 m/o. We allow ( and encourage and play frequently) ball throwing and make sure he has a number of light or very soft balls around.
Any other toy being thrown is taken away and hes is told why its being taken away, then move him onto playing with something else. CAn have thrown toy back sometime later in day, not a big fuss it just gets taken off high shelf and returned to toy box/heap.
Things go in peaks and troughs, at the mo hes not throwing so much more into runing around in circles and falling over.

I had a 'thrower'. If he threw (or if we caught him before he threw) we would tell 'no we don't throw indoors only outside'. If he then threw then the toy would be taken away. He did eventually grow out of it but it seemed a long time coming (about 6months overall IIRC).