i personally am a lefty, i use my left hand for everything except wii because in order to use the nunchuk, i hold it in my left hand and my wii controller in my right hand.
I'm right-handed when I write or draw and ambidextrous for everything else. I just don't use my ambidexterity very often as I see no point to it outside of my martial arts and sword practice.
completely right, but I can't do some things without my left hand.
^ this. i write with my right hand and do a lot of things using my right hand, but there are certain things i have to pick up/open/do using my left hand because it just feels weird otherwise.