Reference letters, although not difficult, can take some time. If you request a reference letter from someone you will be dependent upon their ability (or willingness) to take time out of their day to write it, print it, sign it, scan it, and email it to you. If you've asked a former boss to provide a reference letter and they truly are busy (not all bosses are created equal) then it may be very difficult for them to take time out to do it.
This past Friday (7/20/12) was the last day of the Spring semester. Also the last class of my first year's contract. It amazes me how quickly this year has gone by. Being that it was my first year and everything was new, I can understand it seeming like it flew by. Nonetheless, it's over now and I can't believe it. The year has been a bit of everything for me. Ups, downs, excitement, boredom. I've learned so much about being a teacher and how to do my job more effectively. Getting to know the students and what works best with them was (and will continue to be) a great learning experience. I'm looking forward to doing it again as I renewed my contract at my school in Busan.