How do I increase the fuel efficiency in my Nissan Qashqai?

I recently purchased a Nissan Qashqai and I noticed that I am spending a lot of money on fuel. How can I improve the fuel efficiency of my car without compromising its performance?

First, make sure your tires are properly inflated. Under-inflated tires can decrease your fuel efficiency. Secondly, try to reduce your driving speed, as driving at high speeds consumes more fuel. Thirdly, avoid unnecessary idling and use cruise control when possible.