True story. Years ago a friend of ours reduced his 'field kit' down to a pair of pliars, an adjustable spanner, and a roll of black pvc tape. That pvc tape proved invaluable on many occasions. It would hold things in place if they'd come loose, and it would make an effective short term temporary puncture repair to get us home. In the latter use, having found the hole, you wrap tape round several times while the tube is partially inflated. It would of course mean that you'd have one patch of wheel that wasn't as fully inflated as the rest, as the tape would limit the expansion at that point, but it would get you home.