How To Find Water Leaks in Your vehicle?

Had some water coming in my Chevy causing a wet carpet...
I'd suspected it where the Rear Roll-Up Quarter Window Seals so I'd replaced them.

I used a drive in disco smoke machine... borrowed from a friend, to check if there where any more big leaks...
It seems to be much better now. Sadly I didn't film with the bad seals still in it, as it probably would be a better example,
But... Anyway, where smoke gets out, water can come in...

Searching for: How to Find a Leak in my car. Smoking Out water leaks? Bad door window rubbers / Seals / Sealing? How can find out where my wet carpet comes from.? What Causes a wet Carpet?
Replacing rubber... car seals and check if they're okay? Where is the water in my car coming from?
Check my vid...