What is the most inexpensive way to keep unwanted cats off your property?

The most inexpensive way to keep unwanted cats off your property is to make your property unattractive to them. Some things you can do to achieve this include:

- Spraying areas where cats frequent with a mixture of water, vinegar, and essential oil (such as peppermint, lavender, or lemongrass).

- Spreading cayenne pepper or coffee grounds around your property.

- Playing loud music or using motion-activated sprinklers to startle cats.

- Placing aluminum foil or thorny plants in areas where cats like to dig or climb.

- Ensuring that all trash cans on your property have tight-fitting lids.