This jewelry display by the Almost Makes Perfect blog takes average materials such as string and brass, and turns these items into a fully functional place to hang one's accessories.
According to the designer Molly, "this would also make a great entryway organizer for holding keys and outgoing mail! The greatest thing about this project is that it’s insanely easy." Basically after putting together the rectangular-shaped brass structure, the string just needs to be tied across to hold everything in place. Once this is done, you can hang the jewelry display up in the wall, and start adding your favorite accessories. For those who are especially bad for remembering where they put their keys, this could also be placed near the door.