Step 1: Materials
-Markers (2 will be fine. Sharpie is suggested.)
-tape (I suggest painter's tape, since marker doesn't wipe off of it. Will be used to put the flags on the posts.)
-index cards (used to make the flags)
-20 small paperclips (To make flag posts)
Step 2: Step 1: Flag posts
straighten out the paperclips, and then break them in half using pliers (Grip one part with pliers and just wiggle the other side till it breaks.