If your indoor cat should ever get outside and get lost in the strange new world of your neighborhood, one way to help orient your cat is to place its litter box outside. That way it might notice the smell of its litter box and find its way home.
Another technique is to look for your cat late at night and rattle a box of its favorite treats or even open a can of cat food that your cat may recognize. In the quiet of the night, your cat has a good chance of hearing the noise and could come running to a familiar sound.
Hopefully you’ll never lose your cat, but since this is always a possibility, take the time now to take pictures of your cat and get it microchipped.