A theme I hope to follow for 2010 in health issues is a focus on simple solutions. Looking back on things that I've tried, it is more often the case that simple solutions are superior to any complex solutions. For example, with effort-based lifting the focus is on a simple measure (full effort), rather than a complex scheme of sets and reps. Things like this tend to work for the long run, while complicated schemes often only show short-term benefits.
In science, this is called Occam's razor - the simplest solution is often the best one. I've found this to be true many times and look to focus on this concept for this year.