1. Switzerland is beautiful but much costlier in terms of stay, food, and everything. 

2. They also have city tax for stay as Austria has.

3. Souvenir: cheese, cowbell, Swiss watches, etc.

4. They have commercialized every spot for every relevant activity, like hiking trails, biking, every town, snowmobile activities, etc.

5. You can easily get town or city information at the information center which is located near the train station.

6. Usually Switzerland is a cold place and a hilly country so bring your shoes and jacket. 

7. Switzerland has many panoramic trains route. Before visiting Switzerland, please do some research about different routes and trains. You need to pre-book the tickets because most of the time they are not available at the last moment.

8. You can buy food or daily groceries from Coop/Spar shop which can reduce your food expenditure.

9. Switzerland has good public transportation and information about the station and route is available at the station itself.

10. Most people speak German but they understand English as well.