Saw something yesterday where they had put a space before the comma but not after.
There is also the matter of ellipses. There is an actual ellipsis glyph in most fonts (…) but apparently you're not supposed to use it. You're supposed to use three periods with a space in between (. . .) instead. In any event, the proper form is three dots. Not two dots, not four dots and certainly not an endless number of dots . . . . . . Oy. Three dots, spaces debatable. (...)
Anyway, I remember many moons ago, in my English class, we had to do a group report or story or something. Sad that I cannot even remember what it was. Anyway, my group stayed after school one day to use the computer to work on it. We each took turns at the computer. Well, the maniac before me had used an ellipsis at the end of a sentence, which was fine but . . . back then, there was no (to my knowledge) ellipsis character on an Apple IIe keyboard. So, despite my protests, he had typed several dots like a crazy person.
So, of course, as soon as I got on the computer, and much to the others' protests that I was wasting time, I went back (arrow keys, no mouse) and made it three periods as was proper form. Three, not five or seven or however many he had typed. Three!
It was a group paper, after all, and I didn't want to have a lower grade because someone couldn't follow basic punctuation rules.
As a side note, not only do I not remember what the report or story or whatever was about, I also don't remember the grade on it. But, for sure, we didn't get penalized for using an improper ellipsis. ;)