So I've got this method for cryogenics that's fairly foolproof, and some friends interested in a one way ticket.
Problem 1: We're going to emerge pretty helpless, naked and frazzled... A little brain damage is likely, and general amnesia is almost guaranteed. Except for me, they're all pretty handy at survival stuff, and their professional skillsets will be intact, but they will not know much more than their names.
Problem 2: the minimum time is over a million years, so it'll be hard to tell what conditions will be like on the future side.
What should I put next to the tank to help me and my pals out at the other end?