How can I increase my Toyota Prius' fuel efficiency?

I just bought a Toyota Prius and I'm wondering if there are any tips or tricks to improving its fuel efficiency. It's important to me to be environmentally conscious and save money on gas.

Regularly check and replace your air filter. A dirty air filter can decrease fuel efficiency by up to 10%.

Accelerate slowly and maintain a steady speed. Rapid acceleration and braking can waste fuel.

Make sure your tires are properly inflated. Under-inflated tires can decrease fuel efficiency by up to 3%.

Use your car's cruise control function on long trips to maintain a constant speed.

Consider investing in a hybrid battery charger to prolong the life of your car's battery and improve fuel economy.