We used letters.
Was it gold or did they just trade things for what they wanted.
Bartering.Trade with Gold & Silver primarily. (still do to this day)
They used leaves, corn cobs , sticks, and their hand.
the feathers of a bird. loaded on he inside with ink they would sharpen it
animal skin was one of the first clothing types along with foliage
They didn't. You can't use something BEFORE it is invented.
benches
bikes
Buttons.
pickaxes
carriages
horses or their feet.
wall sockets
Brief case
Buttons and knots.
A pen and paper!
they use to walk