Answer:
In Paris but not in France the thinnest of its siblings.
I belong to you but others use me more often than you do. What am I?
I sit in a corner while travelling around the world.
A dagger thrust at my own heart dictates the way I'm swayed. Left I stand and right I yield to the twisting of the blade. What am I?
I can wake you up in the morning but I require no electricity or winding.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.