Hi, Roger,
Here in the Applachain Mountains of VA, we have our share of crickets also. Fortunately, all but a very few stay outside!
Here is a link with good explanations of the different types of crickets. Also, scroll down to the heading "Prevention" and the other "insecticides".
http://www.critterridders.com/crickets.htm
I hope this helps rid the little varmits. Good luck.