How do I improve my Toyota Yaris's fuel efficiency?

I recently bought a Toyota Yaris and I am wondering what steps I can take to increase its fuel efficiency. I know that proper maintenance and driving habits play a big role, but I'm looking for specific tips that could help me save money on gas.

Properly inflate your tires and avoid aggressive driving to save fuel.

Regularly change your engine oil and air filters to ensure your Yaris is running efficiently.

Consider using a fuel additive to help improve your Yaris's fuel economy.