Perfect Path Technologies: Omega E mat

Guys, this is a question to those with the alpha ecards: do you think an ecard under main components (avr, htpc, equicore) would will make an appreciable difference as a poor man's solution? 

I'm thinking of a full mat for circuit breaker and ecards under my components as a beginner solution since I just don't have the kind of funds many people in this forum seem to.

So I took the plunge and ordered a mat, ecards, and the TC paste.

My biggest question is where did people find the TC most effective? I'm not even sure where to begin with this stuff. Thoughts?

Not sure if this is a stupid question but has anyone used TC between the Romex to the wall socket?

Not sure if that causes fire safety or insurance issues but I'm curious if it's been done.