Start by getting all your inboxes empty before you even start the weekly review. And if you are in the beginning capture phase then it will take a lot longer to do the review.
My problem is the things I think will only take 2 minutes so I try to do them then and discover 15 minutes later I'm just now finishing the task. Practice is all that will help with that problem.
I also split up my review and do one of the items at a time then take a break so a weekly review for me happens over the course of a day or 2. As long as I get them all done at least once a week I feel I am ok and some weeks it just takes longer to do each section than others.
Oogie McGuire - Mac, iPhone & Omnifocus
OogieM on Twitter
Paonia, CO USA