I would use it to cure cancer. I’m not being a goody 2-shoes here either but really, if you could do one thing, shouldn’t you do it for as many people as possible? I would never ask for a boat or a vacation in Greece or to pay my bills; I would use it to help the world. What I really should say is I would use my magic wand to cure all illnesses in the world, but that might be pushing it. You don’t want to sound too greedy if you get the “magic wand.” When I was a child (ok, still now) I would ask myself ‘what would you do if you got one wish? My answer today, and when I was six remains the same, I would ask for more wishes.