My second time attending the event - they've got it down to a science. I can't believe how many people attended!
Highly recommend staying at the Luxor - great value and they have free shuttles running to the convention center. Also, recommend either bringing your own food or getting the barbecue by center hall. Food trucks are a ripoff and terrible.
Lyft and Uber are now in Vegas, so don't forget them! Typically at CES you're going to get screwed with surge pricing from Uber, so check out Lyft in times of need!