My DD is gradually asserting her growing independance and with that I have noticed an increase in tantrums over the past few weeks. Not being able to change a dirty nappy is my current regular battle. I have tried talking, bribing and just leaving it for a while. Friends are suggesting a form of time out or naughty step, but I am still not convinced by these methods for a 21 month old and also how would I get her to sit still for a minute and half without that becoming a huge battle? Also I think that once a time out method is implemented it appears to be overused and I assume gradually ineffective?