The former owners made weird decisions (like burying things in the yard) and they liked to use the crawlspaces as storage.
There were, if I remember correctly, 23 bags of insulation in the main crawlspace. My electrician pulled them out for me (I don't get in the crawlspace because of SPIDERS, OH MY GOD SPIDERS) and my contractor friend took them off my hands.
The weird crawlspace was apparently used as a junkyard.
We found a bag of potting soil, a broom, an old window screen, and a lot of small pieces of wood. The boy awesomely volunteered to pull on his hoodie and his workgloves and fetch them through the window. I held the flashlight and SCREAMED when a huge spider came coasting down onto the boy.
Oddly, he didn't seem to appreciate this.
But it's clean and we didn't kill each other afterward, so I think we can call this one a victory.