Just a quick organizational suggestion for Wednesday's surgery. This tip has honestly put about 15-20% on my productivity.
Lettering a page essentially has two parts: the boring part and the interesting part. The boring part involves transferring the text from the script to the Illustrator page, placing the artwork and positioning it correctly. In an ideal world, you could stick all this on an Action, and be done with it but, unfortunately, you can't!
The interesting stuff is the actual lettering, which has pretty much nothing to do with anything of the above.
I can't speak for anyone else, but I find there's a time of day when I'm not at my creative best. For me, it's later in the day -- after eight or more hours sitting staring at that monitor, I'll admit that I start to flag. For many other people, it's the earlier part of the day.
If you have the luxury of planning your work more than a day in advance, then use your less-productive hours to do the part of the job that requires little or no creative thought: prep a whole batch of files so they're ready to letter. Because I do this last thing in my working day, I can have a day's worth of worked prepped and ready to go for the following morning. If you've got a laptop you can do the prep work sitting in front of the TV having a nice glass of wine and pretending to listen to your wife/husband.
Trust me: the pretending to listen to your partner part is solid gold. :-)