If you are dealing with the issue of an unwanted mouse in your home there are several different routes that you can take to try to be sure that you are able to evict your unwanted boarder. When most people think of getting rid of mice they think about a few different kinds of traps. The traditional mouse trap will crush the mouse when it tries to grab bait set up on the trap, there are also glue traps that cause the mouse to get stuck to the trap with a powerful adhesive.
In addition there are mouse and rat poisons on the market as well. You might find all of these methods a bit inhumane. If you'd like to try another route there are live traps that trap a mouse inside but do not harm it then you can release it elsewhere. There are also natural thinks such as peppermint oil that mice just naturally do not like and you can use these as repellants.
