If you had a one-way ticket to Jan 1, 1999 that departs on Jan 1, 2024, and you are allowed to bring whatever fits into a backpack with you, what would you bring to use to take over the world, and how would you use it?

Assume that the future can change based on your actions, so any historical information that you bring along with you from the intervening 25 years may quickly drift out of the new realities history....