Be where people need to go (goverment offices)

...and sell them stuff they need or think they need there. Furthermore make sure to exploit new opportunity windows. For example government offices for citizens affairs has moved recently. There are loads of people there. So:

1. Open a photocopy office as close to the entrance as possible. Surely they need to copy some of the tons of papers they carry in and out of there.
2. Invest into a hot dog stand and get someone to sell them there. There is loads of people waiting for other people outside, furthermore some people spend literally hours in there, so when they come out they must be starved. Alternatively, warm drinks cart would also work.
3. Get some students who would stand in front of the office, give free advice and offer to "stand in line" for the busy or impatient (they would have a cell phone to call a few minutes before the client is next). Alternatively, they could offer to do the "paperology" for them and deliver the papers to them (directly or via mail). - A simple authorization form does wonders! (Your role is too coordinate all these activities and maybe establish a we pick your documents at home/you send them to us signed (with the authorization form), we do all these things for you&deliver).