How to improve fuel efficiency in a Vauxhall Corsa?

I've noticed that my Vauxhall Corsa has been burning through fuel quickly. What steps can I take to improve its fuel efficiency?

First, make sure your tires are properly inflated. Low tire pressure can decrease fuel efficiency.

Regularly changing your air filter can also help improve fuel efficiency in your Vauxhall Corsa.

Try to avoid excessive idling, as it can waste fuel.