My planning method (and this DOES NOT hijack my thread because it was used to prepare my GHB) is thus:
1) Write out all of the possible situations you will be tasked with surviving.
2) Write out who you are responsible for.
3) Write out what you will ALL need to survive your list of disasters while taking into consideration individual needs (medical care; etc).
4) Write a draft strategy (e.g. PROBLEM: "Chemical Spill on nearby train tracks" SOLUTION: Evacuate to "John Smith's" house with 72Hr Kit).
5) Develop a list of needed goods from the four above issues (e.g. 72Hr Kit....Water filter; Lighter.....)
6) Refine your kit and plan as your learn and TEST / PRACTICE!!!!! If you're 4'-4" tall and weigh 600 pounds do not expect to walk that 150 miles to Grandma's!!!!!
I also recommend the following book for those getting started:
James Wesley Rawles "TEOTWAWKI". This book doesn't cover things like which bugs to eat. Its more of a "philosophical" overview with some focus on areas that require planning. Its inexpensive and informative. As with all things - eat the meat and spit out the bones (JW Rawles spends too much time on overpriced commo devices in this particular book).