I came across Ricky Spear’s post Why We Resist the Weekly Review and Plan (and What You Can Do About It). He writes (emphasis mine):

Regardless of whether you are keeping your life organized using the Getting Things Done methodology or the FranklinCovey methodology, a central component of both systems is the “weekly review” or the “weekly plan”. For many practitioners this is the single most difficult discipline and yet also the most crucial discipline.

He then proceeds to list everything that might prevent one from doing the weekly review, and what to do about it. I don’t know what goes into the weekly review, but I do know this: what he says is applicable to any project you might be putting off. Well worth reading! It’s a great list.