This obviously means you’ll have to balance your use of redundant items with your carrying capacity. However, you can address both of these competing forces by trying to bring along items that serve multiple purposes. This way, you aren’t really bringing items that are duplicates of each other, but you still benefit from having some backup options. For example, duct tape is often included to repair clothing or camping gear, but you can also use it as a band-aid in a pinch. Safety pins are another good multi-purpose supply, as they can be used for clothing repairs, bent into fishhooks or used to sew up a wound if need be.
Finelli remained at the helm until he came down with pneumonia in late 2016. Months before, an interloper who claimed to have no Social Security number or driver’s license had driven up from Arkansas on nitrogen-filled tires, used to skirt a law requiring licensing for vehicles with air-filled tires. His name is Andrew:—he has no last name; he says adding the colon keeps him from being cataloged in “the system”—and his resourcefulness impressed Finelli, so he offered Andrew: the mic during his absence. He never got it back.
For global catastrophic risks the costs of food storage become impractical for most of the population  and for some such catastrophes conventional agriculture would not function due to the loss of a large fraction of sunlight (e.g. during nuclear winter or a supervolcano). In such situations, alternative food is necessary, which is converting natural gas and wood fiber to human edible food.
For personnel who are flying over large bodies of water, in additional to wearing a survival suit over cold water, a survival kit may have additional items such as flotation vests, sea anchor, fishing nets, fishing equipment, fluorescent sea marking dye, pyrotechnical signals, a survival radio and/or radio-beacon, formerly a distress marker light replaced by a flashing strobe, formerly a seawater still or chemical desalinator kit now replaced by a hand pumped reverse osmosis desalinator (MROD) for desalinating seawater, a raft repair kit, a paddle, a bailer and sponge, sunscreen, medical equipment, a whistle, a compass, and a sun shade hat.
The increased inflation rate in the 1960s, the US monetary devaluation, the continued concern over a possible nuclear exchange between the US and the Soviet Union, and perceived increasing vulnerability of urban centers to supply shortages and other systems failures caused a number of primarily conservative and libertarian thinkers to promote individual preparations. Harry Browne began offering seminars on how to survive a monetary collapse in 1967, with Don Stephens (an architect) providing input on how to build and equip a remote survival retreat. He gave a copy of his original Retreater's Bibliography to each seminar participant.