The obvious suggestion is simply "get the economy growing again" - the question is how, and of course America can only go so far on its own if there is still crisis in the rest of the world.

That's rapidly ceasing to be the case - there just aren't many countries left where wages remain "pennies on the dollar" while productivity is at acceptable levels. Those differences are growing smaller, and will continue to grow smaller. Though of course it depends on the industry. I'm personally active in the chemical industry, so that's the one I know - and there, American companies are enjoying a major boom as we speak, due to the shale gas cost advantage, and regaining ground compared to the Chinese and others. A lot of the new factories or expansions of factories are being built in the US, because that's where the shale gas is.

See Greg's reply. That "we have the highest corporate tax rates of any country!" argument is extremely disingenuous and extremely tiresome, unless you're using it simply to make a case for a simpler and fairer corporate tax code with less byzantine deductions (in which case I'd quite agree). America is and remains a very good place for a company to have its corporate seat, even when the company has outsourced much of its labor.

There are no magic solutions that will suddenly undo or reverse all the outsourcing. Among the factors that could limit it or slow down the trend - besides just waiting for wages and working standards in other countries to grow closer to American ones - you should definitely include improvements in education, sufficient spending on infrastructure, keeping the levels of regulation and red tape acceptable, investment in research and innovation, and so on.