you can also build a backpack AP, bring it anywhere and just sit there drinking coffee while your laptop is collecting info in the bag hidden, (or on the table if u don't care if vid cameras see u).
once you get in one person's email/facebook or whatever you mass mail out your fake logins to everybody on their contacts "hey, check out my pictures in thailand" or something to get more. pretty much everybody uses the same password for everything including their bank