Google as a Calculator and Dictionary
Google has some neat features in addition to their search. You can also enter arithmetic formulas and words you want to get definitions for.
For example, try searching: "11*12", Google will interpret this as a formula and give you the answer (it's 132 by the way) as the top search result.
Next try searching "zyzzyva". If you don't know what it means look it in the upper right corner of your search results for a link to the definition. If you misspell it, Google will correct you by offering a "Did you mean ..." link.