Content-wise, I let my hands type whatever my brain is thinking, sans filters. Quite often, I might look at the entry again and think to myself gee, that's probably inappropriate, but I usually let it stand. However, I will abuse the "edit most recent entry" button to fix spelling/grammerical errors and to make it sound less Engrish.

BTW, what's with the trend to not use capital letters? Sure they're pretensious, but they're required.