sherdawgg

The Cruise Compass will indicate the recommended attire for dinner in the Main Dining Room as well as various dance parties.  The longer the cruise, the more events.  Haven't been on the Mariner, but on other ships there is a dress your best/formal night (or two), but you don't need to go overboard.  There will be a night for a tropical/Hawaiian shirt, and maybe a white night late at the pool deck.  Other threads discuss clothing in great detail, but as long as men have a collared shirt and long pants, men won't feel out of place anywhere regardless of the recommended attire.  I like to pack a sport coat or wear it on the ship, but other men don't.  My wife has clothes that are nice but doesn't wear fancy ball gowns.  Again, Cruise Compass from the link at the top of the page will get you started.  Have a great trip!

I use this for my belt loop

If you have it on your app then you don't HAVE to have a paper copy but most of us prefer to have both.  There is a "print" function on the website that allows you to print your SSP

They have a 10:00 one and then another at 1:30, we did the 1:30

@Melodyjn what time of day was the excursion? 

Nope.  Royal Caribbean does not enforce the boarding times.  You can be onboard and enjoying the ship by the time your "boarding time" rolls around ?

Terminal typically opens at 10am.  The majority of the time you will begin boarding 10:30-11am, so might as well get there early!

Opt for Lyft XL and call the driver as soon as it is assigned to verify they have room for you.
In my experience, Lyft XL means you will get an SUV.

In my case in this scenario I bought a copy of the court order that gave the mother sole custody as well as the notarized letter.  
My advice is bring as much paperwork as you can but offer none of it unless requested.  Walk up to the check in agent, hand over passports and setsail papers but don't say anything unless they ask.