There is a simple way to save more for retirement that doesn't require you to cut spending elsewhere: keeping investment fees low can add up to thousands of dollars, even tens of thousands, by the time you leave work.

As an example of how much you can save, the figures in the below chart show how much someone would need to have at retirement to retire comfortably according to the Association of Superannuation Funds of Australia, based on expected lifespan and other factors…