I read a book of short stories when I was a kid or pre-teen in the 80's that included a story about a man who has a small house inside his house (think doll house/birdhouse) and he gets tiny visitors which he never can catch a glimpse of. He tries to and it ends up driving them away.
Another of the story is about a family on a farm? Which ends up getting horses every time they make a wish and they get out of control.
One more that I remember sounds like a Lovecraft story about a man who wants to be "lighter" he doesn't lose weight but he starts to float away. I do not know if it's the same as the Lovecraft story. I don't think so. I'd have to read it to be sure.
The stories were in a big hardback book that I had so many years ago but I'd love to know what it was!