An espresso coffee al banco (at the bar) costs €1,20 It is usefull to have some cash money with you. In Milan it is very common to pay little amounts in cash.
Walks when?
Walks starts every day at 10 a.m and 3 p.m. (times are changeable)
The walks are all private. Drinks and subway exclusive.
Price per adult €25.
Children up to and including 12 years €10.
You can pay in cash after the walks.
Reservations recommended
I advise you to book in advance the beneath museums:
From here you can take the subway blue line M4 till San Babila. In San Babila you can change to M1 (red line) for the Duomo (San Babila-Duomo is 1 stop) and other stops.
Arrival airport Malpensa
From here you can take the Malpensa express, which take you in one hour to Stazione Centrale or Porto Garibaldi. You can buy tickets at arrival in vendingmachines when walking out of the terminal. (€14 per person single trip)