I always do at least a quick run through the summary or shop log before submitting. I also check to make sure the receipt time falls within the shop window before submitting my report, as register time clocks are frequently inaccurate in my area and that's been the most frequent reason for an editor to contact me in the past. If I've written a narrative of any sort, I give it a quick skim in most cases, although I will read it out loud when writing for certain MSCs or clients. I make sure my narratives match up with the "no" answers, too.
The whole process takes a minute or two and allows me to submit without stress most of the time.