If you're a star alliance silver/gold traveller, there's a Swiss arrival business lounge you can use before leaving the airport or waiting for a connecting flight. Jut follow the arrival lounge sign.
Don’t put your boarding pass away. Be prepared to check it 5 times just to board your flight. In addition to having your passport scanned three times, in three separate queues.
Charge your laptop or cellphone. Go to the Center Bar on the lower level (huge open spacebar with many chairs and tables by the big windows). 25 meters to the right is a Sony Charging station.
Check-in counters are a mess. Some are underground, some first floor other upstairs. Also security checks: you're required to keep going up and down stairs...
Things are expensive here and if you have a stop over somewhere else in Europe buy your Swiss chocolate (Lind...) there except Sprüngli. You will save up to 35%