We all know that one nerd. The friend who brings a book everywhere she goes. The sibling who can solve a Rubik's cube in minutes. The cousin with a subscription to Popular Science.
When you start brainstorming gift ideas for these fact-loving folks, expensive tech gadgets might be the first idea to leap into your head. But you don't need to shell out a ton of cash to please a nerd. Try these thrifty recommendations instead.