The folks at Popular Mechanics have a great survival guide section on their web site with great tips on how to survive almost any type of disaster.  While these plans are not specifically designed with zombies in mind many of the same concepts apply.

It covers what supplies to have, what to do when power fails, suggested survival gear, and many other things to do in preparation and during a disaster.  It is a fairly quick read and is broken into sections so it should be easy to find what interests you.

I personally liked the printable checklists for survival kits for car, home, etc.    They make great starting points for folks, but most will end up personalizing them depending on their needs.  A couple items that never seem to be on these lists, but I think are essential for kits - especially for car kits - A hat and sunscreen!  If you have to hoof it several miles in the sun then a broad brim hat and sunscreen can save you a lot of pain and damage.