I still double code on stories, sort of -- write it out using Word's italics or bolding or whatever, because I like to get a feel for how it's actually going to look, with the downside being that I have to go back once the story's read to be posted and actually tag all the formating again.

(I used to make it really difficult on myself by being very silly about the whole process, and pulling the whole file over to the LJ entry box, and then going through and adding the html either from memory or by checking sections against the word file. Because...I was an idiot, I don't know. It's embarrassing how long it took before it occurred to me to do the coding in Word and then transfer everything. *facepalm*)