Four free mobile tools that will steer you right:
Yelp: Read local reviews. The app's new "Monocle" button activates the camera mode. Point your phone at a street, and reviews will pop up for any business shown on the screen.
Gogobot: Connect this review app to Facebook to see which of your friends has visited a destination. Plus, turn your photos into virtual postcards you can send via email or text.
Waze: See real-time traffic updates, as submitted by the app's 50 million users. Waze also flags nearby gas stops (with prices) and tips you off to accidents and other obstructions.
GasBuddy: This app does just one thing but does it well: It finds cheap gas using the latest user-reported data. See options plotted on a map or use the list view to sort by price or proximity.
They soar above ordinary trips and perform feats of vacation derring-do, all while nailing their budget. Here are their travel tips.