At the heart of it all, royals are really just like the rest of us.

They go out to dinner, head to the movies, and go shopping.

And it turns out their shopping habits are a little different, too.

Kate Middleton smiling in a polka dotted dress at Wimbledon

(To be fair, she’s probably not used to having to remember it herself.)

“He hadn’t a clue who she was.”

If nothing else, her choice of code name sheds some light on how well her marriage is going.

Kate Middleton wearing an all-white outfit out in public

According toShowbiz CheatSheet, she sometimes goes by Daphne Collins when she’s out and about.

The two letters are a nod to the title Duchess of Cambridge without being too obvious.

The publication notes that it pairs nicely with Prince William’s nickname, Danny Collins.

The Duke and Duchess of Sussex kissing

On top of that, there are some less formal nicknames that William and Kate share.