A 401k plan is one of the most powerful retirement saving tools that you can have, but it works best if you avoid these common mistakes.

Many people miss out on free money by not contributing enough to get their employer's full match. Plus, withdrawing early can lead to hefty penalties and taxes, which can seriously impact your retirement savings.

Don't just set it and forget it! Regularly review your 401k to adjust your contributions and investment choices as your life changes.

A few smart decisions today can make a huge difference for your future. Make sure your 401k is working as hard as you are!