If you have a special power,what would you do with it-xing yee

If i had a special power , i would choose to have a power to enable me to split into two. As if i can split, i could do two things at the same time without any worries and it could increase my speed on doing the household chores. I could also suprise my family by doing chores faster than them.But there might be one thing about it, if ever i split into two who will know who's the real me?(Hmm...)