I was just thinking the other day that a great tri product would be swim goggles designed specifically to be also worn on the bike.. would be much better than trying to squeeze sunglasses on while wearing a helmet..
As everyone is saying, there isn't really much difference between pool and OW.. take your time leaving poolside.. they may have mats down to make it less slippy. We had to go downstairs in the last pool triathlon i did. That was nervy!