How do I improve the fuel economy of my Audi A4?

I recently purchased an Audi A4 and I noticed that it's not as fuel efficient as I expected. Are there any specific tips or tricks I can use to improve its fuel economy?

Regularly maintain your car according to the manufacturer's recommendations. This ensures that the engine is running smoothly and efficiently.

Avoid idling your car for long periods of time. This wastes fuel and has negative impacts on the environment. If you know you'll be stopped for more than a minute, turn off your engine.

Check your tire pressure regularly and make sure they are properly inflated. Under-inflated tires can decrease fuel efficiency.