This isn't exactly about my writing but I like to think I know my era (Victorian) very well. I'm kind of a research geek, so I struggle with not including historical extras nobody but me cares about. It's hard not to go off on what everybody ate for dinner, wore under their clothes, and scrubbed their grates with. And my latest obsession is maps, so now I have a new temptation to wrestle with, that of including the names of unimportant locations. I like my parks and sidestreets, even when I have no good reason to mention them. 
ETA: Oh, and I've never quite forgiven myself for putting a Georgian era dress on the cover of my second Accomplished book, when the period is mid-Victorian. It still bugs me whenever I look at it but I couldn't find the image I needed at the time.
ETA: Oh, and I've never quite forgiven myself for putting a Georgian era dress on the cover of my second Accomplished book, when the period is mid-Victorian. It still bugs me whenever I look at it but I couldn't find the image I needed at the time.