Sasha is not quite at full blown paddy stage yet but she does throw herself on the floor in a rather dramatic fashion when she wants something she can't have. Dd1 was quite the tantrum queen for a while, and she can still throw a good one if the mood takes her, my stratergy is too just ignore it as far as possible. When she was 2 she had a massive one outside in the middle of the street, and I just stood next to her ignoring her (I got some very dirty looks, but what you gonna do?), anyway after a few mins I just bent down and said to her quietly, 'are you finished, shall we go now?' and she just got up and followed me. I don't think there is much more you can do really, just calm explanations and time outs.