How can I improve fuel efficiency in my Volkswagen Polo?

I've been noticing that my Volkswagen Polo's fuel efficiency has been decreasing. Are there any tips or tricks I can use to improve it?

One simple way to improve fuel efficiency is to make sure your tires are properly inflated. Underinflated tires can cause your car to use more fuel.

Another tip is to avoid excessive idling. If you plan on stopping for more than a minute, it's better to turn off your engine and restart it when you're ready to go.

Regular maintenance is also key to maintaining good fuel efficiency. Make sure to get your oil changed regularly and keep up with other recommended maintenance.