What can you use the Bottle for? It's the only item so far that you use glass for, and sand is only used for glass so far yes? Does the bottle have a use in this beta?
You can put water in it and use it to water crops (makes them grow twice as fast!)
Ooh! That is nice! Maybe for the future; add a type of info or wiki ingame where you can read what all your unlocked items do :)
For instance like the one you can find in Slime Rancher, if you have any knowledge to that game!