I feel that in my last job, the biggest challenge I faced was the fact that they stuck me in an office that was in the way back of the office, and I felt like I kind of got forgot about. Literally, my boss said to me one day, she's like, oh, gee, I forgot you were even back here. So I had to take it upon myself to make my presence known and to learn who was the best person that I had to seek out when I had questions or if I had an issue with, say, training and or just learning the new materials. I guess that was probably the biggest challenge that I can think of right off hand.