I have an irrational fear of getting separated from my pack and having to survive like on Naked and Afraid. So I heard of people who see what survival gear items they can get into a Tic Tac breath mint container. It only measures 1 3/4″ X 2 7/8″ X 5/8″. Not 100% waterproof, but it’s pretty tight and you’d have to submerge it for awhile for any water to get in.
In the pic below starting at top left and going clockwise: 1) Stainless steel blade from an old pocket knife. Cutting edge is 2″ long. Far more solid and a better choice than a razor blade for most uses (6.9 g) 2) One dozen waterproof matches with striker (2.1 g). 3) Photon Micro Lite. Puts out a surprising amount of illumination (6.3 g). 4) Ten Aquatabs. Enough to treat 7.5 liters of water (1.5 g). 5) Seven yards of 8 lb test monofilament fishing line and 2 Eagle Claw hooks (0.9 g). 6) Duct tape 1″ wide X 14″ long (2 g). 7) SPF 30 sunscreen in plastic straw with each end heat welded to seal contents. There’s just enough to cover nose, face and neck in an emergency (1.3 g). 8) 3 ml glass vial with Deet. In a situation where there’s a lot of mosquitos it can keep you from going crazy. Just a little goes a long way. Simply apply very small amount to fingertips and rub onto exposed areas. 9) Compass. Works good enough to accurately show general directions and that can be enough to save your life sometimes (4.4 g),
And here is with everything packed in. Total weight 1.38 oz.

