Binder Clips

One of the most well-designed everyday objects, the binder clip does one thing really well—hold loose paper together. It's obvious how to use it. It features a beautifully simple spring mechanism, which means no maintenance and minimal chance of breakage. It can also be used to hold sheets in your hand. It's easy to add or remove sheets and doesn't damage the paper (much). It doesn't obstruct reading or writing. What's not to like? Did I mention it looks great?