So if you read this post, please reply with just your first name, geographical location, when and where you were certified (agency name), and your highest level of certification.
Richard.
Hopkinsville, a small city in southwestern KY, U.S.A.
2006 - OW cert. via PADI; trained in the Nashville, TN area, did (winter) checkout dives at Vortex Spring, FL, the the last 2 checkout dives at St. Thomas, USVI, on a honeymoon cruise.
2007 - Nitrox cert. via PADI in the Nashville, TN area.
2009 - AOW cert. via PADI on vacation group trip out of Nashville area to Bonaire.
2010 - Deep Dive cert. via PADI on vacation group trip out of Nashville area to Bonaire.
2011 - Rescue cert. via PADI in the Nashville, TN area.
2012 - Solo Diver cert. via SDI in Hopkinsville, KY (Pennyroyal Blue Spring Resort Quarry). I'd call this my highest cert. level. PADI offers 'Self-reliant Diver,' but I wanted it crystal clear mine said and meant 'Solo Diver.'
That pretty much covers the cert.s I 'need.' There are others that offer value, but at this point, I'm not eager to hurry up and add more.
Richard.