https://xkcd.com/1205/ might be a good rule when working, but not when using a computer at home: automating the task might be more fun, I might learn more, while spending much more time than just doing the task. (I'm not sure this would convince me to learn the Emacs style of regular expressions; I always have to guess how many backslashes to add to turn a trivial POSIX ERE into an Emacs regexp.)
@mtjm I automated something this week that I learned a lot doing! I think it ends up worthwhile under xkcd 1205 as well, and led to inspiration on two other projects.
mtjm.eu is one server in the network