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

I've noticed that my Toyota Yaris's fuel efficiency has been decreasing lately. Is there anything I can do to improve it?

Regularly maintaining your Toyota Yaris's engine and tires can greatly improve its fuel efficiency. Make sure to schedule regular oil changes and check your tire pressure regularly.

Another way to improve your Toyota Yaris's fuel efficiency is to avoid idling for long periods of time. Turn off your car if you have to wait for more than 30 seconds.

Driving at a steady speed and avoiding sudden accelerations and braking can also help improve your Toyota Yaris's fuel efficiency.