It's one thing for Congress to stymie progress because the two parties never agree on anything. But when Democrats and Republicans can't muster a vote on a bill that both want passed -- on something as innocuous as energy efficiency -- well, our expectations plummet to new lows. In this video, Fool.com contributor Aimee Duffy looks at the Shaheen-Portman energy efficiency bill, what it would have done, and what investors can still do to cash in on this growing trend, despite Washington's inaction.