Negative Income Tax - an idea by many, lately bandied about by Charles Murray.
Start with a $10,000 minimum payment/benefit for those making $25,000 or less, decreasing with income to $5000 at $50,000 a year.
The basic idea is that the United States has wealth, and plenty of it. It just isn't being disbursed right. Instead of a helping the people who need it the monies go (for example) to self-perpetuating organizations who have no vested interest in helping their clients escape their clutches. No other benefits - you get the 10k and make the best of it.
Why not treat adults as if they were adults and see what happens?
Link2 (his new book)