Abstract: Mouthpiece retention systems and methods are shown and described. In one example, a mouthpiece includes a guard shaped to fit in a wearer's mouth and a magnet. In other examples, the mouthpiece includes a semi-rigid grip having a proximate end attached to the guard and a distal end securing the magnet. A method of releasably fastening the mouthpiece includes removing the mouthpiece from the wearer's mouth and positioning the magnet end of the mouthpiece on an athletic uniform to create a coupling position.

Abstract: A business process involves manually entering data from an invoice into a first database by a first person. The database includes a status indicator having various states. The invoice entry is audited by a second person who manually enters a subset of the data into the database. The subset is matched with the data entered by the first person and unmatched entries highlighted. The auditor may re-enter only data which he has entered. The invoice is then returned to the first person who may re-enter only data which he has entered or cancel the invoice. After there are no unmatched entries, the first person posts the data to a second database.