Houston, we have a PROBLEM

This morning, I discovered that my house had a visitor while I was sleeping. A four legged, beady eyed, grey, squeaky visitor. That's right folks, I had a mouse (or more likely, mice). The clues have been evident for days, but didn't really add up until I found the droppings this morning. It started with a pan of brownies, covered with tin foil on my stove. A few times this week, I came into the kitchen to find that the tin foil was peeled back a bit in the corner. Blindly, I thought nothing of it, replaced the tin foil, and continued about my day. A few times when I have been sitting in the living room watching tv at night I've heard a strange noise come from the kithcne or utility room. I just figured it was a new place, and I don't know it's noises yet. And a few weeks ago, when I was over here one night painting my bedroom, I heard a strange chewing/scratching noise coming from the ceiling. I freaked out a little, but convinced myself it was just a squirrel on my roof eating a walnut. I never heard any more chewing, so I forgot about it. This morning, the tinfoil was peeled back, and there were droppings on my stove. I spent the rest of the time I was supossed to be using to get ready for church wandering the house, searching for other evidence. After church, I came home, and set four traps. Tonight when I got home, DEAD MOUSE. SICK. I put on a glove and threw it in the trash, screaming to mom on the phone the whole time! I also set poison bait all over, so if he has any friends, hopefully they will all DIE! I do not want any mice around my new beautiful couch!