Embrace The Void.
The fact is, you are the expert, the one most qualified to put together competent drawings - your current job. Your customers are not experts at this, though they may think they are.
Track your time and charge for it. Roll it into the whole, or give it a line item if you wish to whip 'em with it. Quit your cryin' and charge 'em.
Many of us have spent considerable time establishing ourselves as experts in our field. Take control of the situation by exercising that expertise and selling it back to your clients. That is why they are sitting in front of you.
I get terrible, almost non-existant architecturals where "we had to put something in there, but that is not what we want." Fine. This is now my opportunity to sell what I make, to have influence, to add to the overall. Tell me what you like.... Yes, you can have that. We can do that.
Always yes, always positive. Don't ever whine about drawings or design time or anything to do with their job or the work in general.
I now charge for design time, and talk time, and blabber time, and for all the incidentals we used to think we had to give away. It is not a line item, unless that is the way they want to see it. I have never had a complaint about the charges.