My Various Hobbies...
Usually, I don't find any interesting $1.00 books in the Dollar Tree, but I did find one once. It was The Perfect Palette by Bonnie Rosser Krims. At the time, I was repainting my bedroom, the hallway, one of the bathrooms, the kitchen, etc., so it was interesting to look through the various color combinations in the book and imagine them in my home.
Each of her palettes has three colors. Some of the palettes in the book are illustrated with photographs of a room done in those colors. Other palettes are illustrated with paintings that contain those colors.
Since then, I've collected various tearsheets, scraps, etc. of color combinations that I like and tucked them into the Perfect Palette book. The palettes below are taken from them.
If I were ever going to actually use them in a room, I suppose I'd have to refine them a little. Meanwhile, collecting a new palette every now and then is another of my odd but cheap and harmless hobbies.
Recently, I added a Palette Grabber extension to my Firefox web browser, so when I see a set of colors online that I like, I can collect and save the palatte. Apparently, I'm not the only person in the world with this curious interest.