...to walk past the reception area at work and look out the front windows to see only the darkness outside.
...to want a snack around 2am, and then again around 5am, and sometimes at 3am.
...to have "breakfast" around 3 or 4 in the afternoon.
...to listen to Morning Edition on NPR on my way home from, rather than in toward, work.
(Only took 2 months to get used to it all...)