Email, call, and snail mail your Congress Critters. Especially if you're in a narrowly-held state.
Once per week, hit them up with something.
I just sent letters to my Congressmen, as well as Ted Cruz and Rand Paul. Will they do anything? Probably not. But they will start to take notice if we all make some noise.
If everyone that has a F1 or F4 pending sent in a message once per week, we would see some movement. It doesn't necessarily have to be a law passed. These guys can pull strings behind the scenes to do stuff like hire more examiners.
In before someone says I'm wasting my time. At least its something other than checking NFA tracker and complaining about the wait.