M.H.
I have 5yr old twins, and i dont think theres much difference when it comes to a 2yr and 3yr, well anyway i found it really hard to deal with both of mine, then i tried making a wall chart with stickers, and at the end of each day, if they were good they got a sticker, and if they got 5 in a row, they got a surprise, i have a treasure box, that i fill with little toys and things i know they will like, it works a treat, oh and if they are bad I will tell them to stop and be good (well along those lines) 2 warnings on the 2nd it's the last then it's time out, if they get time out i dont shut them in a room but sit the on a chair like in the dinning room, with an egg timer, set to 5 mins (1 min per year) and tell them i will come talk to you when it buzzes, by that time they are over there tantrum and ready to play, as long as they get a big hug at the end!
this has made my life and the twins' life so much happier.