I fell in a terrible, terrible way recently. In fact, it was what led me to his site.
I agree with the premise that falling is preceded by many, many loosenings of our personal restraints, all on a level we may be perfectly unaware of. Sadly, our falling is a matter of aveirot and not a light thing. This understanding should inspire us to have a plan to interrupt the possibiity of a falling, kind of like the fences the rabbonim have been authorized to erect for the benefit of the klal.
I have found in my experience that if I allow myself a certain room for aveirot, my yetzer hora will only conquer more and more of me. The key is not to permit ourselves. If we, boring and unexciting as it sounds, bring ourselves to fight the little things, big things may never have a foothold on our lives. Yes, it can be tedious and bothersome to be pushed to the edge of sanity over trying to corral a seemingly small problem, but all of that effort will save us from a much bigger, looming darkness. I know.
Also, it seems boring. Boring because the yetzer hora's idea of fun, which we have tasted and well know is so much spicier. But that is an illusion. We need to literally find ourselves b'simcha in things that are holy. That is the only way, I think. Without that joy in kedusha, the taste of the yetzer hora is just too sweet. With it (love for kedusha), we can easily overcome. Somehow, anyhow and anyway that we can, we have to cultivate this love. And apply it diligently to the little things.