M.L.
My 19 month old does the same thing. I tried distracting her, etc. but what I found works the best is to absolutely ignore her. Tell her no once, then that is it. Don't look at her, don't say her name, don't tell her no again, and don't yell. Her tantrums are MUCH quicker now and less often. It's the hardest when you are in a store and tantrums begin, because you REALLY want them to be quiet so you can continue shopping, but you have to be strong and worst case scenario, just walk outside till she is done. Good luck! We all thought it was the terrible two's huh, but nobody tells you about the terrible one's! :)