Building a small island go between base and I was surprised to realise that you can’t use corrugated metal to make rooves! (Yes I spell it like that because that’s how I was taught in school 
)
I would think that an Aussie developer would have put this in before anything else! Hot tin roof is base-Australiana.
Some other ideas (that may or may not have already been suggested):
- Craftable leather hat to partially protect from the sun
- Craftable leather quiver for arrows
- Some method of disposing of spoiled foods
Still definitely enjoying the game though!