People are lousy planners. Consequently, they are lousy savers. This video presents two apps which can easily help people to save a little bit of money automatically. One app helps you save for the short term, like vacations; the other app helps you save for longer term, like retirement.
I am not comfortable giving third-parties access to my bank account, but if you are OK with this, and you do not have the discipline to save and invest on your own, you might want to look into either or both of these apps.