How can Cassie, Matt & Bethany afford to travel around the world?
Cassie has amassed a sizable stash of money thanks to her time machine and a series of wagers on horse races and sports games, not to mention some smart investing in the stock market. (But she prefers to stay at her job, because she enjoys her profession.) And she’s more than willing to spend the money to accommodate Matt and/or Bethany so they can go with her. And Matt having special connections as a travel agent doesn’t hurt, either.