Google has handy resources for travelers. The search box on their home page can be used to help with currency conversions for example. Type the amount and type of currency and you will get an instant conversion to dollars.
Track flights without going to the airline's site by typing in AF25, or whatever your flight number, in the search box.
Check the time anywhere in the world by typing in "time Singapore" or "Singapore time".
Translate words in Google Translate. Find a word, phrase or translate a complete document.