How can I improve the gas mileage on my Nissan Micra?

I have noticed that my Nissan Micra's gas mileage is not as good as it used to be. Are there any tips or tricks to help improve the gas mileage?

Regularly check and replace your air filter to improve your car's air flow and gas efficiency. This is a simple and cost-effective way to improve fuel economy.

Try to avoid unnecessary idling. If you are stuck in traffic or waiting for someone, turn off your engine instead of letting it idle. This can significantly improve your gas mileage.

Check your tire pressure regularly. Under-inflated tires can decrease gas mileage by up to 10%. Keep them properly inflated to save on gas.