How can I maximize my Ford Fiesta's fuel efficiency?

I recently bought a Ford Fiesta and I'm looking for ways to improve its fuel efficiency. Are there any tips or tricks that I can implement to get more mileage out of my car? My budget is tight so I'm trying to avoid making any expensive modifications.

One simple way to improve your fuel efficiency is to make sure your tires are properly inflated. Underinflated tires can decrease your gas mileage by up to 3%. Also, try to avoid aggressive driving and keep a constant speed on the highway.

Another tip is to plan your routes ahead of time to avoid unnecessary backtracking or traffic. This can save you a lot of time and gas in the long run. Additionally, avoid carrying any unnecessary weight in your car as this can also decrease fuel efficiency.