What's Your Least-Favorite Airline Fee?

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Fees are in the news again, with reports that an increase in carry-on bags has added some $260 million to the TSA's budget. So that got me thinking: What's your least-favorite fee? It's OK, you can take a minute to think about it. There are certainly enough to choose from.

Some travelers may choose baggage fees, seen by many as the original slap-in-the-face fee. But others may bristle at the idea of paying to sit toward the front of coach, or to board early, or for a bit more legroom, or to change their flight, or to bring a pet with them, or … well, you get the idea.

For me, it is, indeed, the bag fee. I like dropping off my suitcase at check-in and carrying just a small backpack on the plane. I'm not usually in a rush, so waiting at baggage claim isn't a big deal. Nowadays, I either avoid airlines that charge first-bag fees or simply pack a carry-on and hope for the best.

So, what about you? Which fee really gets your goat? Share your thoughts below. Thanks!