A ruger 10-22 with a 4x and flashlight is my 'dillar tool of choice. If they are making a mess around the house, I use a wireless driveway alarm to wake me up (usually around 4am!) and go "sneak" up on it.
A guy at work had a relative who's daughter was having a wedding on their farm. The guy fertilized and watered and got the site very nice and picture perfect. The night before the wedding, an armadillo had torn the whole place up!