Who doesn't love a good travel guidebook? The pretty pictures, the neighborhood descriptions, the guides to the sites. Of course, they're also bulky, and can add extra weight (and costs) to your luggage. Plus, burying your nose in one in public immediately identifies you as a tourist (and potential target) while traveling.
Before dropping dollars or euros on a decent guidebook, check out your destination's tourism board. The city of London offers an official tourism app, and downloadable Tube maps abound, all for free. Switzerland Tourism offers not one, but 12 free apps covering every major city, an events calendar, and hiking, swimming, and weather guides. Fodor's, PocketGuide, Rick Steves, and TimeOut also offer abbreviated free city guides as samples of their more in-depth products. With all those savings, you'll have enough left for high tea.
Perfect for: Traveling light, looking like a local, not getting lost.
Available for: Varies, but typically iPhone, iPad, and Android