Wash them with soap and water, then dry with a cloth every so often.A pack of travel Kleenex. Sometimes you don't have your phone on you, or you'll want to let someone listen to something while your phone is in use by someone else.Sunglasses with clean lenses. By 'safe,' I mean albums that you've liked for a while and won't get tired of. Personal Items:Several dollars in change for parking meters, tolls roads, and cart deposits at groceries and airports.A car charger for your phone and an aux jack, cassette adapter, or some method of playing audio over the stereoA few 'safe' burnt CDs.