i've had 4 iphones and i always notice that when i first get them the external speaker is a lot louder for ringtones, speakerphone, etc. after time being spent in a pocket i suppose it's natural for lint and debris to accumulate in the little holes around the speaker deafening the sound. so what's a good way to clean it? blowing into it does absolutely nothing. part of me thinks i should just take it apart and tear off the fabric portion on the attenna cover. anyone else have this problem? other solutions?