How to improve fuel efficiency in my Ford Focus?

I've been noticing that my Ford Focus is consuming more fuel than usual. Apart from regular maintenance, what other measures can I take to improve its fuel efficiency?

As a fellow Ford Focus owner, I suggest checking your tire pressure regularly. Under inflated tires can significantly decrease fuel efficiency. Also, make sure to use the recommended grade of gasoline for your car.

Try to avoid idling for long periods of time and remove any excess weight from your car. These small changes can make a big difference in your fuel consumption.

Consider using a fuel additive or fuel cleaner to remove any build up in your engine. This can help improve your car's overall performance and fuel efficiency.