Business Insider gives you the 12 dumbest things you can do with your money in your 30s

Time is still on your side in your 30s if you mange your money well, it can huge financial gains in the future.Here are 12 of the worst money decision 

1. Not taking advantage of work benefits

2.Not increasing your 401(k) contributions

3.Only putting money toward a 401(k)

4. Not setting aside money for big upcoming purchases.

5.Neglecting disability insurance

6.Neglecting life insurance

7. Trying to live up to your neighbour or co workers standard

8. Not determining who pays for what when you get married or set up a household

9. Overspending on the first kid

10. Not contributing toward a college-saving plan

11.Going to graduate school for the wrong reasons

12. Not revisiting and adjusting your  investments

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