DE - How do we use it? Let us count the ways...

[Country Heart]

DE (Diatomaceous earth)

How do we use it? Let us count the ways...
Please be specific. I just bought some and am looking for ideas. I will compile responses and we can see how many uses we can come up with.

 

[CheerfulHeart2]

My dad uses it to get the cockroaches. He doesn't have chickens.