If all the stuff above isn't your cup of tea (or you've done it already) you can still get involved both directly by getting in touch with your reps -- or by joining a group of like-minded people to commiserate and plan events.
Contact your representatives
We'll admit, it can seem sort of like a self-congratulatory exercise to send postcards or leave voicemails for reps, especially if they're already on the same side of the political spectrum as you are. But friends in government assure us that this, actually, is the best way to make a difference, and that they take response from constituents very, very seriously. Here's where you can find your senators, and here are your house members.