A mouse in the house? Why not? Pet mice are cute, easy to care for, and fun to watch. You will need a wire cage or ten-gallon glass aquarium, aspen shavings, paper, or hay, rodent food, a water bottle, untreated wood blocks, paper towels, toys, an exercise wheel, and of course, a pet mouse. Find out how to care for a pet mouse by watching this video animal care tutorial.