Do I smell funny?

Today, my issues have nothing to do with my health. I'm just frustrated and starting to feel inadequate. Why won't anyone hire me? I have two college degrees. I was a teacher for eight years. I've worked in an office and in retail. I have skills. Lots of employable skills and yet, I can't seem to make it past the interview. I really want to know why job after job is turning me down after the interview. Do I smell funny? Do they dislike manatees? Have I unknowingly insulted their mother? I just wish they would send me a letter stating the specific areas in which I was lacking so that I could improve for the next interview.
I have a friend who is going through the same thing right now in a completely different town. Educated, skilled, amassing a pile of rejection letters. On the one hand, it's nice to have someone to go through this with, on the other hand, I feel dreadful for both of us. I keep thinking that if one of us gets a job, then the other can hold out hope that they will be next. And it's not like we are being picky about the jobs we apply for either. I've applied to be an administrative assistant, a receptionist, a child advocate, a clerk. I'm a hard worker with a solid work history. I have references, I'm willing to take significantly less pay than I previously made, I wear my good pants to the interview and nothing. Nothing. NOTHING. Why won't anyone hire me?
I guess I just keep on applying until somebody gets desperate enough to take me on. Wish me luck.