What is the best way to increase fuel efficiency in the Audi A3?

I recently purchased an Audi A3 and I want to improve its fuel efficiency. What are some specific tips and tricks you would recommend for getting the most out of my Audi A3's fuel consumption?

Keep your tires properly inflated. This can improve your fuel efficiency by up to 3%. It may seem like a small difference, but every little bit counts!

Avoid rapid acceleration and heavy braking. This can increase your fuel consumption by up to 40% in stop-and-go traffic.

Cruise control can help maintain a steady speed and improve fuel efficiency on long highway drives. Just be sure to turn it off when driving in hilly or mountainous areas.