after 45 years of EDC'ing, i would agree with KenK that Doug's kit are the fastest & easiest & safest way to get started.

unless you already have definite ideas about what knife and 'light and water purifier to carry, his "Plus" kit is my first choice. if you already are covered in those areas, his standard kit is fine too.

Adventure Medical's Pocket Survival Pak Plus

http://www.adventuremedicalkits.com/product.php?product=233#