Landing
DXB is enormous, and it moves faster than it looks
One of the busiest international airports on earth, and the bit that takes longest is the walk to the taxi rank.
Getting around
Taxis do most of the work, and they are cheap
Dubai is built around roads. The Metro is excellent where it goes and does not go everywhere you need.
Paying for things
Cards everywhere, dirhams pegged to the dollar
The currency does not move against the dollar, so the maths is easy and the same every day.
Eating
Two hundred nationalities cook here, and most of it is cheap
Dubai's best food is not in the towers. It is in Deira, Satwa, Karama and Bur Dubai.
Apps
Four downloads, then the city works
Install these on home Wi-Fi before you fly, along with the eSIM.
The rest
Heat, custom, and what to do with a spare evening
The things nobody tells you until you are standing outside in it.