For instance, I hate to mat and frame anything. I worked in a gallery where I learned all the nifty tricks to matting and framing which, since I live so far from access to a good framer, has been a good skill to have. Because I know this about myself, I make the extra effort not to procrastinate to the last second accomplish this chore. In addition to this, by giving myself time, I dont' rush into framing or matting something incorrectly with inappropriate colors. Last, make a list and file of shows you enter on a regular basis.
Most shows come around the same time each year.
Mark it on your calendar so that you can be prepared ahead of time. These are really small changes to make in your daily shedule, and while they might be difficult to implement at first, I think you'll be suprised how quickly they become routine, how much more work you'll actually get done and how much more organized your life will become.