MSNBC's Budget Travel team puts websites - new and established - to the test every day. So when it came time to line up our favorites, the task was easy — we just turned to the sites we keep revisiting because they're so darn helpful. Our top picks can help you avoid overpaying for airfare (Bing Travel), bag the primo room at a hotel (Hipmunk), and never miss a deal on a rental-car reservation again (AutoSlash). Some of our favorites are as useful as a mind-reading tour guide (Plnnr); others are as handy as having a personal secretary track your frequent-flier balances (Award Wallet). Put them all together, and they become Budget Travel's picks for the best the Web has to offer. Get the full story at MSNBC