Cool new calculator lets you enter in your 2010 income so you can see how your money is being spent. I used the default for two income family making $60-80K a year, but you can enter in exact numbers from your W2 if you prefer.
What I found is that about 26 percent of my taxes went to military spending - the highest percentage of total spending. Medicare and Medicaid were the next highest expenses. Surprisingly, a lot less of my money went to welfare, unemployment and food stamps than I thought. What's especially sad is how little money goes to education, R&D, or community development. The average taxpayer is spending 10 percent of their taxes for the current wars and only 2 percent on K-12 education.