Well, here's a great annoyance....
Turns out some of the fixtures our electrical plans called for may not exist. (Or, if they do exist, they're so far out of our budget it's not worth even thinking about them.)
We were originally told to just to to a home improvement store and pick out some fixtures and write down the model numbers and such. When Karl got to the store, he was told by the store's "electrical specialist" (or whatever he was called) that several of the fixtures don't exist.
Karl is meeting (right now) with the guy who drew them to try to figure out what to do about this problem.