what works best to keep the mouse in your house and what is best to kill them?

I have mice in my house! I turds on the sides of my room area. Is it better to take the furniture from the walls? What can I do to kill them? Poison, traps? Where should I place the "Remida? (Corners, along walls, under furniture?) How can you – I stop into my bed? HELP!

put a lot of pictures in the corners, Walla, under furniture. They left.