Check out RadTech's PencilClipz, a holder for your Apple Pencil that slips into your Lightning port for storage. It also functions as a pocket clip for Apple Pencil, and you use the stylus with PencilClipz attached, so you don't need to worry about losing it, either. I haven't tested it yet, but it seems like a clever solution for keeping your Apple Pencil with you or your iPad. It's priced at US$7.95 and available now.
Check It Out: PencilClipz for Apple Pencil Slips into iPad Lightning Port