I have a book on programming, which means that I need to look at it when I am on my computer (meaning that I don't have any hands available for keeping the book open). The only problem is, it keeps closing itself.
What is there I could do to keep it open? It would be best if the solution is already an item the house instead of buying something.
Since this is on an uneven surface, a weight won't work since it would just fall off.