Mice love New York, so click on it.
Animals need food, water and shelter. You can't eliminate those, but pest control professionals suggest trying to reduce the freebies you're giving away:
Mice can squeeze through a hole as small as a nickel and rats through a hole as small as a half-dollar. Are there gaps around your cable cord? Your kitchen pipes? Check for windows that don't close all the way.
Don't use steel wool to seal up holes, as many people do; it rusts and disintegrates. http://www.nytimes.com/2006/04/01/business/01shortcuts.html