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And already after one day of work, I can tell they make a huge difference. At work I felt more productive, and less distracted from the noise around me. I think it was really good, because I sit right next to a busy meeting room, where the constant in and out of people causes me to always look up and see what's going on. It's my instinct to look around to see what's happening, but now that there's no noise to cue me, I can pay attention to my work. Flying is never something I enjoy, but I know it will be 10 times better now that I don't have to listen to lots of background noise when I fly back to St. Louis.
Of course, my manager had to wave for a few seconds to get my attention at the end of the day. I expect to get hit a few times for people to get my attention. =)