Please Leave Our House Alone!

Termites are starting to dominate our house and I am getting a little worried that they might munch up everything and lose our home. Argh, I am already paranoid. I can't help it because I always see trails of them. I did some research and found out that the sand-like thing that they produce is some kind of subterranean termite droppings which I learned from a termites guide. Now I'm even studying them!