There are some things that you don't need to do every day, yet are still important enough to warrant a reminder. You know, like vacuuming, or checking your stock portfolio, or reminding yourself to tweet about how incredibly important it is to bring Firefly back to television. Google's got your back: at some point they added an "occasionally" option to Google Now's built-in reminders, triggered when you tell Now to "remind me" to do something.
Google Now is a powerful tool. A step toward Google's vision of a Star Trek computer in the palm of your hand, Now is built to serve up information that you need, exactly when you need it, without you asking for it.
To that end, the service has seen many improvements since its debut. It will tell you when your favorite teams are playing, when you need to leave to make it to the airport on time, whether your plane is delayed, and plenty of info about your destination and surrounding attractions, among numerous other things.
Google Search teardowns are always a huge mess, because there's really no way of knowing what is or isn't implemented. I'm up against a scary combination of Now's entirely context-based UI and Voice Actions, which has absolutely no UI. Rather than try and guess at what does or doesn't work, I'll just post everything that Google neglected to add in the change log. If you manage to see something working, send in a screenshot and I'll add it.