If you need to sleep on the flight, also pack a few sleep essentials.
"If I know I want to sleep on a flight, I'll carry on earplugs, an eye mask, a blow-up neck pillow, and a little lavender essential oil (which helps me prep for sleep). If you have a hard time sleeping on planes and are on a long-haul flight, bring along some Tylenol PM, too."
Yeah, some are only 10kg!
There is no step 2.
Enjoy your flight.