First, establish a federal "cost of living" standard that reflects the minimum cost of what it takes to live in a modern society. Then, raise the federal minimum wage to a rate that provdes 100% of the basic cost of living, and adjust that rate regionally so that everyone who works can afford to live.
Why is this important?
More money in the hands of the poorest is the best place to ignite our sluggish economy. People who have needs they cannot afford to fill will spend all additional income provided. The added income will spur the economy while improving the health, well being and security of our most vulnerable citizens. Its a Win - Win - Win.