I have pretty much what everyone else has except the PDA and S&W. I appreciate Thrak's thought of the whistle; I'll throw one of those in too. Lots of Water! I have my big cache bag and my portable bag for leaving the car. What I really need is a 12 foot stick that folds up into 2 foot sections. Then when i'm out in the boonies, I could unfold it and put a big red flag on top and stick it on my car so I could find it. Or, I could learn to use my GPS & just "track" back ... I also keep things in my car like a radio, book, food, fire - all in case I get lost & need to keep busy and alive til help arrives. And should I plan on venturing FURTHER than the Walmart parking lot, I'd throw in a tent and sleeping bag too, just in case. Some of my caches though have been those where I had only a GPS and jotted coordinates & just "took off".