After talking with my twitch chat, we came up with a few suggestions that I think would make the game better.
A craft all button or slider
Stair hand rails
A lift mechanism made of acorn tops that spins by a crank or on its own like the spinning wheels
A phase 4 of the Sharpshooter mutation that will auto collect all the arrows you fired just by walking over them, no damage increase
A phase 4 of the Grass Master and Rock Cracker mutations that will auto collect anything you have cut or busted open, like dry grass, clay or quartzite, etc.
A new mutation, Forager, that will auto collect items from the map like sprigs, plant fibers (the ones growing out of the ground), pebblets, etc.