If your as young as you say you might want to look into contributing to an IRA. Not only will this help you by establishing a retirement account to draw on later but it decreases you Adjusted Gross Income. If your adjusted gross income is under a certain amount you can receive a portion of the money contributed back as a credit. (I.E. I put 3000.00 into an IRA. As a married man making 50,000 Adjusted Gross I get 10% back as a credit. When my tax liability is calculated $300.00 will be figured in against that amount.)
Check out if you qualify here:
http://www.irs.gov/newsroom/article/0,,id=107686,00.html
If your continuing your education then you definately want to look into Lifetime learning credits which will give you 20% of the first 10,000 of tuition paid. For your first two years of schooling though the Hope credits are a better deal. These give you a 100% tax credit on your first $1000 in expenses and an addition %50 percent on the next $1000 so you can claim a maximum of $1500. What freshman or sophmore in college doesn't rack up two grand in tuition?
Check out this link for these credits:
http://www.irs.gov/taxtopics/tc605.html
The car recommendation wasn't actually a half bad peice of advice but the trick is that charitable contributions are filed on a shcedule A. As a single young male I am betting you do not have the needed deductions to make filing a schedule A worthwhile. (Medical, Mortgage interest, state tax, real estate, charitable contributions, non-reimbursed employee expenses and tax preparation fees are the most common items on a Schedule A)
Check out this refrence on how to claim a non-cash contribution of over $500.00
http://www.irs.gov/faqs/faq-kw37.html
Best of luck to you.