This has all been about flat tax vs our current system. Why hasn't anyone mentioned a sales tax, and nothing more? This seems like the easiest thing to do. No income tax at all. Every red cent you earn is yours. You can bury it in the backyard if you want. If you make $10/hr and work 10 hrs, you get $100. Simple.
Then, just have a sales tax on food be lower (say, around 10%), and another sales tax on EVERYTHING else (around 30%). THEN, to assure that you aren't screwing over poorer people, every April they can send a copy of their W-2 forms and all the sales tax they paid on food to the IRS and get refunds based on income (for example, if you made less than $40,000 you get 100% back, if you made less than $60,000 you get 50% back and if you made less than $100,000 you get 25% back).
Problem solved. Everyone can eat, everyone pays taxes, the big spenders pay more taxes than the little spenders.