All depends on your perceptions and on what you want to achieve. The first and most important thing to do is to cut travelling. How are you going to shorten the travelling distance to/from work and/or to/from school? I can do the following:
- Stay withing a close range of your work/school.
- Work remotely.
- Change starting time and knocking-off time at work.
- Cut speeding cause speed consume lots of fuel.
- Public transport is not an option but you will save a lot.
- Use one car for the whole family.
- Use small car on a daily basis.
- Change your lifestyle.