Have you ever read a post on your blog a couple of days later (after publishing) and found words or spelling that needed to be changed? I just make the changes and usually go on down the road unless my mistake has been pointed out in a reader’s comment.
Mostly these amount to word usage mistakes that weren’t caught by the spell check–like there or their, to and too, accept and except, effect and affect. These type of changes are usually no big deal and really don’t affect the message.
