I remember my first roommate saying, "As long as it's paid before they shut it off, who cares?" Well, that's not really such a great attitude to have once you're actually an adult, haha. I've also noticed that the fees added on for late utility bill payments can be quite high. While I admit that I have had to pay things late before, I try to avoid doing so. I mean, of course, it's just best to pay right away anyway, but things happen sometimes. If you get in a pinch, you can usually get an extension (like after missing a week of work during an ice storm, during the highest heating cost month of that year). It's a relief to get an extension if needed, but remember, those fees add up.