There have been many books/e-books released recently which cover this area. Apparently we all have too many tasks to fit into the 24 hours per day we’ve been allotted.
Biblical Productivity by C.J. Mahaney is an oldie, but a goodie. Available as a free (.pdf) download, these 17 tips will put you on the road to determining your priorities and allotting the available time you have to each one.
Biblical Productivity speaks particularly to those of us who are unorganized and/or procrastinators.