Here's something usefull the Libertarian party could do: run a candidate against every uncontested Republican in Congress. They might win one of those.
They already run a candidate in almost every race. That's part of their problem. They disperse their funding and their candidate poll to a ridiculous extent, and then complain about not having funidng. I just lets them continue their claims that everyone will someday agree with them, without every having to show any electoral success.
How about this for the Libertarians: run one single experienced, serious candidate in one House race where someone is running without major party opposition. Given him all the funding that you were going to disperse to the 500 candidates you would otherwise run. And then we'll see if your ideas actually have any traction when they can get heard.