Don wrote:

BTW, what do you use to clean the glass?
I use lens cleaner and lens paper but this
still seems to leave a thin film/smudges behind
no matter how thorough I am. I even tried to
polish this off using a microfiber cloth but just
can't seem to get it all off. I'm starting
to get the feeling I'm just redistributing it.

Windex with ammonia works pretty well.
Lenscrafters sells an alcohol-based glasses
cleaner that works also. To wipe, I use
lint-free lab wipes. You're quite right, though;
that last bit of residue is really tough, and it
takes multiple passes with solvents. I use lots
of liquid and big wipes.