The DU Lounge

Earthworms show up (good) and the soil stays moist longer (very dry here) and my gardener admires the technique (also good)

In the distant past I read something about sprinkling a combo of coffee grounds & egg shells around for pest control on the dirt in the garden, but not only am I dubious about that, but I think the egg shells would look unsightly unless you pulverized them. And would look pretty bad on bits of the house outside.

Moles … we got gophers, which destroyed a whole lot of stuff before I got a bunch of solar powered ultrasonic repellant stakes (check Amazon for quick reference, then if you are boycotting them, buy elsewhere). They worked on our gophers, and when I saw a new hole in another part of the yard I just moved the stakes around. They are also supposed to work on moles, voles, and snakes.
They beep every minute or so — you get used to it. Big bonus: no poisons to enter the wildlife foodchain.