... by being too early 🙂
Yesterday, we packed our things, checked it off the hotel, took the train to the airport, went to the check-in. The lady couldn't find your reservation. When we showed her paperwork, she saw we were actually booked for tomorrow!
I don't know how we messed that up, but we did. Counting the days can become a challenge with different timezones and such. Anyway, I'm happy we were early rather than late, because early can be fixed by waiting. So we returned to Vancouver and found another hotel.