fasten the documents together with a paper clip
1Paper clip — A paper clip (or sometimes paperclip) is a device which holds several sheets of paper together by means of pressure: it leaves the paper intact and can be quickly and easily removed, unlike the staple, which will damage the paper unless removed… …
2Staple (fastener) — A staple is a type of two pronged fastener, usually metal, used for joining or binding materials together. Large staples might be used with a hammer or staple gun for fencing, masonry, roofing and cardboard boxes. Smaller staples are used with a… …
