It never ceases to amaze me how much rooted users can get done with the Xposed Framework customization engine. The latest add-on module lets you expand the somewhat basic canned responses available on Android Wear-enabled text messaging apps. With WearResponses, you can add in just about any custom message to the list that appears on your watch, which should be handy for specific work replies that are too unique for voice detection.
Anyone who sends out Gmail messages containing the same body text over and over again knows how taxing that can be. Fortunately, there's a great feature in Labs called Canned Responses to help combat this issue by offering the ability to have pre-built responses directly within the compose window.
Let's say, for example, you're out of town and won't be able to respond to most email in a timely manner, but don't want to set an away notice so everyone gets the same response.