Eeeeeeeewwwwwwwwwww, those bring back memories.
When I was a kid we had them really bad. My Mom always had me go out at night with a flashlight and a salt shaker. I made a game out of it, trying to beat my top number. They were mostly on the sidewalks and the aluminum siding.
We don't have them at this house, thank goodness. I have heard that if you have toads, you won't have slugs. Don't know it thats true, but we do have a lot of toads.
Karen