How do I improve the fuel efficiency of my Toyota Yaris?

I recently purchased a Toyota Yaris and I noticed that I'm not getting as much mileage as I expected. What can I do to improve its fuel efficiency?

Regularly maintain your vehicle by getting oil changes, checking tire pressure, and replacing air filters. These small things can greatly impact your car's fuel efficiency.

Avoid aggressive driving and speeding. This not only wastes gas but also puts unnecessary strain on your car's engine.

Consider using a fuel additive or alternate fuel like ethanol to improve your car's fuel economy.