Hello, We live in an apartment in a city setting. Today my wife and saw a mouse run across the floor and under the couch. I wasn't able to find the mouse later, or any obvious hole or droppings, but clearly we have mice. I'd appreciate suggestions for getting rid of mice, preferably in such a way that they don't come back. I know this has to be done quickly. Any thoughts on what traps work best? What about bait and poison? Has anyone successfully used natural and humane methods, e.g. strong smells such as peppermint oil? Thanks a lot!