How can I improve the mileage on my Audi A2?

I own an Audi A2 and I'm looking for ways to improve its mileage. Are there any specific maintenance tasks or driving habits that can help me increase fuel efficiency?

First and foremost, make sure to regularly check and replace your air filter. A dirty air filter can greatly decrease your mileage.

Another tip is to keep your tires properly inflated. Under-inflated tires can cause your car to work harder and use more gas.