Travel rip-offs to watch out for (and how you can avoid them)

Very useful article: Avoiding the 10 Worst Travel Rip-offs. While some of the tips are a little basic (avoid Spirit Airlines if you want to avoid the carry-on bag fee only Spirit charges), the article points to some fees I didn't even know about, like US Airways charging up to $50 just to redeem your travel miles, and others charging if you want to book your reward travel over the phone.