Now that we're "by law" being asked to fill out our pre-cruise data sheets before arriving at the pier--and preferably online, I'm waiting for the obvious next step toward full e-ticketing.
That should be when we book a cruise and provide our affinity club number, the data sheet from our last cruise will appear under our new booking number when we pull it up. Then all we have to do is make any necessary changes and submit it.
This would be a nice convenience. Have any of the lines started doing this?