I've been building up my EDC over the last 5 or 10 years so I rely on it more and more, and less on other packs. I have some duct tape, 2 lights, a small Leatherman, a small Swiss army knife, a few first aid supplies, paracord, several ways to start a fire, tinder, pen, paper.

I recently found I could keep a thin emergency poncho in my right back pocket (it replaces a bandanna) which makes me feel somewhat more comfortable about shelter.

I don't carry water. I don't drink a lot and don't miss it, and in this country it's easy to acquire elsewhere. I do carry some water purification tablets and a 1 litre plastic bag to carry it in.

I don't carry toilet paper. However, I do have at least 1 other bandanna, which could be cut up and used in extremis. It is a 35x35" piece of silk, so a 5" strip cut from an edge would make 6 or 7 pieces while still leaving the bulk of the bandanna for other purposes.

I also carry a phone, cash, compass in my watch and a whistle, all or any of which may help keep me out of trouble in the first place.