Been reading for a little while, but first-time poster...
Just got in Friday off the not-special preferred waiting list (full-time). I live and work in DC, so I was lucky enough to get a face-to-face with Stephanie in admissions after I called the office with some questions.
The main thing I took away from the meeting is COMMUNICATE! Stephanie, who just left, emphasized establishing a relationship with GULC, not just sending a generic letter every so often. They log every time they hear from you, whether it's by phone, email, or in person, so respond to everything and be proactive. After I heard that, I wrote in about every 10 days or so, even if it was just a very brief email with a question. The more you write, the more interest you show, thus proving when you say in a LOCI that GULC is your #1 you actually mean it. Obtaining additional letters of recommendation (boss, director of my division, a customer) helped me, too, I think.
For the numbers people - 3.11/172, pre-med at a big state school, 2 years work experience.
Good luck to everyone!