After the excavation of the garage, for the new concrete floor, there was quite a bit of dirt left over that wasn’t exactly garden or flower bed grade soil. What to do with the left over?- seemed like a waste to send it to a land fill. So we put it in the house.
The crawlspace is already too low and will need fill before we poor the new concrete floor (fly-ash of course), so we back filled a lot of the gaps with the dirt from the garage. Seems like a simple, (dumb almost), little thing, but the more the stuff on site remains on-site, the more minimal our impact will be on the rest of the community and region.