Prepare for your future by investing in a savings account or a high yield savings account. After a few years of saving, even a modest amount, can really make the difference in later years.
Start now, by taking vitamins, you will be happy at the results, and will miss out on a lot of the illnesses that non vitamin takers are subject to. I suggest vitamin c, vitamin d, and vitamin d. Those are the main ones that prevent a lot of illnesses, and help to strengthen the body's immune system. My doctor recommends those three also. A multi-vitamin helps, but is not quite the same.
If you have kids, start a small savings account for them also.