Habrosus wrote:
Airport Express tickets:
We bought a set of 4 tickets (just tell them there're 4 of us) and we noticed its total cost is lower than the cost of 4 individual tickets.
Good to take note, if you're travelling in a group. 
They're having a promo now. IIRC, 2 one-way Airport Express tickets for HK$140.
:Later,