What essential Anker products to pack for a week long trips?

Most of us who travel often, we know how frustrating it is to carry so many accessories for all the electronics we carry. What are your essential items that you bring for overnight/a week long trips?

For the weekend, I usually bring the Anker PowerCore 10000, a Lightning cable, and an Apple Watch charging puck. I hope someday that the Apple Watch charger could be built-in to the power bank.