My keychain duplicates yours and on my body I carry a pouch that holds my Wave, an altoids tim w/firestarting goodies, and my cellphone. The belt that holds that has a stash compartment that holds cash. My shirt pocket contains a pen and small notebook.

But I have never understood losing your pack when hiking in the wilds. It just shouldn't happen if you have any kind of experience and with all my misadventures over the years, it has never come close to happening to me. I have dealt with really inexperienced newbies who, panic stricken in a storm, threw away their packs, so they could run faster through the woods in order to evade an oncoming storm (??), eventually injuring themselves and initiating a SAR operation, but they were definitely bottom of the barrel types.

I was surprised that the trooped was carrying his tent in such a manner that it could slip off his pack. Packs should contain their contents inside and present a smooth uncluttered exterior, the better to glide through the brush.

The time to really check your EDC for self-sufficiency is when you are traveling by airplane, boat, or car. In all these situations, your pack will be on board, but not close at hand. An accident then automatically separates you from your gear, perhaps destroying it. In airplane crash survival, the need for quick exiting is highlighted, and you will very often wind up outside the wreckage with only your immediate EDC.