I'm collecting smalland exploits...feel free to contribute :)
1. Let the sky creature / golden eagle bring you home!
You went visiting the forbidden monument and want to get home quick? Just jump over the river and let the sky creature catch you.. you will keep your inventory when you respawn!
2. Exploit the egg incubator!
When you try to collect many ressources that are dropped by animals, you might want to hatch an egg of that animal. Then more of that species will come to your tree, trying to disturb the process. Kill all and gather the ressource. Then you might incubate the next egg.
Now for the exploit: if you only have one egg, unclaim and reclaim the tree at the gnome effigy, while the hatching is still ongoing. The animals, that try to disturb the hatching process will return and can be killed again
But beware: if you are hatching several eggs at once, ALL animals will attack at once... We had to learn the hard way and were overrun by stink bugs :D