When starting a car engine (manual drive), push in the clutch pedal. This reduces the amount of weight the starter motor has to turn and results in faster and easier starting, there is less wear on the starter motor and less fuel is used.  Submit your own tip

It takes a huge amount of energy to heat water so when you have a shower have the heat gauge turned down one notch. You'll hardly notice the difference and you'll save huge amounts of energy.  Submit your own tip