Brent, great suggestions. Another I would add, which I use on almost every flight I book, is to price each leg as a one way and track those prices separately. Often, I book my flight down when that leg is cheap; and then a few days/weeks later the return fare drops in price and I book my way back. In all my travels, I have never paid more (and most of the time save quite a bit) than the original round trip fare. Tuesdays and Wednesdays are definitely the best days to book.