More detail about Swiss currency. There are different names for the subdivisions of Swiss currency in different languages,
- If you are in German-speaking Switzerland, 100 Rappen = 1 Frank
- In French-speaking Switzerland, 100 centimes = 1 franc
- in Italian, 100 centesimo = 1 franco
What names you use in English is up to you.
The official international abbreviation is "CHF". You will see this on train tickets. Otherwise most prices will just be a number, with a comma for the decimal ("4,20"), or sometimes "4,20 Fr".
Coins - picture here: http://upload.wikimedia.org/wikipedia/commons/c/cb/CHF_coins.jpg
Brown: 5 Rappen.
"Silver": 10, 20 Rappen, ½, 1, 2 and 5 Frank. Note the ½ Frank (50 Rappen) is smaller than the 10 or 20 Rappen. Be warned.
Most prices are in multiples of 10 Rappen.
Notes - picture here: http://upload.wikimedia.org/wikipedia/commons/f/f4/CHF_Banknotes.jpg
Denominations: 10, 20, 50, 100, 200 and 1000 Franks
Each denomination is a different colour (as is the case with most currencies), They are all the same width, but the length goes up with each denomination (10 Franks = 126 × 74 mm, 20 Franks = 137 × 74 mm, up to 1000 Frank = 181 × 74 mm).
A "Bancomat" (Cash Machine / ATM) dispenses 50, 100 and sometimes 200 Frank notes.
Switzerland is more of a cash-economy then other European countries. Do not expect credit cards to be taken, always ask first.
Notes contain all 4 Swiss languages. Coins are marked "Helvetia" (=Switzerland in latin) because there is no room for more than one language.
TIPPING - If in doubt, don't.
Restaurant, if you are a group, round up. But for 1 or 2 diners, you will often see people hand over notes, then wait for the correct change.
Taxi drivers usually expect it, but not necessary unless they have done something special, like carrying your bags.
Anything else - no.