If I survive the nuclear holocaust, I'd probably set to work being a scribe:
At its simplest level, manuscripts are about building "memory assistance devices". However, there are some rudimentary devices you should start with:
- tally sticks, which are marked with notches ("tally marks")
- knotted rope, with the number of knots recording a number
- writing medium
- Write on planed wood, or clay tablets, but they're too thick to stack. Better is birch bark or dried palm leaves.
- wax tablet
- make a tablet of wood, and coat it in wax. Write on it with a pointed stick. A razor-like straightedge can be used to smooth over existing writing, allowing it to be reused.
- papyrus is available in certain parts of the world (Africa and the Levant mostly), but not available in most other areas
- The top of the plant looks like a "feather duster". It's found most abundantly in swamps, shallow lakes, and along stream banks.
- the outer hard part of the plant's main branch is stripped off, and the soft inside is cut into strips. The strips are laid in rows (in the shape of a sheet), and then a second layer is laid on top, perpendicular to the first layer. The two layers are soaked in water (to increase adhesion), then they're hammered together to form a single sheet, and dried under pressure. The sheet is then polished with a rounded object (i.e. a stone).
- the skin of any animal (cow, goat, horse, ...), dehaired in a lime solution, and then stretched on a frame to dry
Later, once memories of the modern world had faded, I'd try to foster my own religion, since that's what the most ambitious fiction writers do.