Ok the idea sounds good to journal what the yelling is all about but who has time for that. As a mom of 3 ,my youngest are exactly 2 years apart (sometimes I think it is worse than twins.) I am also a yeller (working on it) and one thing that helped me get it in check was from a book I read- it was actually a behavioral changing technique suggested for kids- i decided it would work great for me. Each time I yell i mark my arm with a pen. Time is not really important. You will not believe how easy it is to stop doing something when at the end of the day you see 10 or so black marks on your arm. Try explaining it when you run into a friend at the bank and you have black marks all over your arm. I have also decided to take a look at how my husband reacts to the kids. He never yells, if they don't listen he tells them the consequence of the action (for example) "if you don't pick up your toys in the next 5 minutes you will get your baby dolls taken away for the night" and he does it. No matter how much crying or pleading. I have learned I did alot of threatening while yelling but never would follow through. Not anymore. I try to not yell when I make my threat because they don't listen when you yell anyway. I now (try) calmly to explain the consequence of the action and follow through with the treat. We also have house rules that always apply such as no hitting, etc. That apply to all of us. If those rules are broken there in not a warning because we have had them since the middle child was born. Everyone knows those rules even the youngest will say no fighting, we don't say that (if it is a word we don't use in our family) so if they are broken there is no second chance. They know the punishment and who they much apologize to for each rule broken. Works pretty well.