Djlawman, I'm surprised to see American Airlines on your list - according to my most recent statement, anything less than three weeks notice will cost $50 "delivery" fee (even if you pick them up yourself!), or $75 if within a day or three.
But United definitely belongs - just last month I reserved a friend's flight on a Tuesday, signed for the miles on Wednesday, and he picked up the [e-]ticket 750 miles away on Thursday an hour before his flight...all at no charge (and it was a saver award to boot!)