: Stuck for something to do, either in your neighborhood or around the house? Google's free iPhone app crowdsources suggestions for you depending on your interests--movies, fitness, food, and other categories are represented. At this early stage, the "on the town" suggestions are heavily populated with recommendation from Zagat and the Bravo television network. The stay-at-home suggestions can be a little more detailed, depending on your interests, offering specific movies to watch or books to read. If you're feeling social, you can share your activities or your goals on Google+.

: If you want to buy hard-to-find tickets for top sporting event or concerts, the free iPhone app already offers a quick and convenient way to do so. The app's new update now lets commerce flow both ways, by letting users sell tickets instead of just buying them. Users can post the tickets, set the price and even adjust it at any time. StubHub takes care of the ticket delivery, making it easy to get rid of that extra pair of ducats.

: This free music app for iPhone used to be known as Dubset I DJ Defined Radio. While it's been relaunched under the somewhat less clunky name , it still offers music "curated by the best DJs in the world." The update makes it more user-friendly, offering options to save, favorite, and follow particular DJs in the app, as well as to create playlists of the best music offered within. A new search engine makes it easier to find music; so does a new browsing option that lets you investigate music by genre. With this app, you'll be ready for a rave wherever you go.