I think this is what design is all about. The challenge is doing it the first time, not the 10th time. Once you find the right combination of layout, color, image, type, content, intent, etc. let it rest. When it all comes together, call it done and try something else. Take a lesson from music.
Popular music is trend.
But there are artists who surpass this, who stay around over time. Because, some artists have been in a perpetual state of reinvention since their first song. No one wants to hear the same thing from the same person forever. Design is no different. With that said, I also wish to take issue with the client side of design.