I’ve contacted my local Congressman in the past and even received a phone call from him to discuss the issue. I will admit I was a little surprised not just that he called, but that he seemed to have a genuine interest in my opinion.
I think you get better results contacting the members of the US House since they are elected by a much smaller portion of the electorate. Many of them may just represent one or two Counties in your state, so the opinions of a few voters really do matter to them.
A major source of objection to a free economy is precisely that it ... gives people what they want instead of what a particular group thinks they ought to want. Underlying most arguments against the free market is a lack of belief in freedom itself.
- Milton Friedman