Or make a super calorie-dense smoothie with high-quality protein powder or dry milk powder, frozen yogurt, a banana, and peanut butter.

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If oil prices fall too far or interest rates rise too high, both cash sources could dry up.

FORBES: Out of Energy

"Either Sarah Palin is leaving the people of Alaska high and dry to pursue her long-shot national political ambitions, or she simply can't handle the job now that her popularity has dimmed and oil revenues are down, " DNC spokesman Brad Woodhouse said.

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