About five years ago, I heard of a fantastic deal on airfare to London on the evening news. Tickets were only $159! The window of opportunity for travel was actually pretty small if I remember correctly, but it was perfect for my family. I had to get a new passport in a rush, but everything worked out and I spent a week in London on the cheap. It was my family's best vacation ever, and we just cackled with glee the whole time we were there. We don't really follow the travel deals sites, so it was amazing we were able to take advantage of it. But those of you who do often get travel discounts, what was the best one? Where did you go? How much did you save (or spend)? And most importantly, where did you hear about the discount?