[header] How to get a mouse out of the house [title] Track down the mouse. [step] If you saw a mouse running by out of the corner of your eye, see if you can figure out where it went. Mice are pretty fast, and chasing them around the house usually isn't the best way to catch them and remove them. 
Instead, track the mouse to its nest so you can catch it using a trap. [substeps] If you didn't see where the mouse went, look for the nest.