When counting squares in a grid, don’t stop at the smallest boxes; the bigger ones are hiding too. The rule is simple: In an n × n grid—where n is the number of squares both horizontally and ...

Move over, Calculator. The Messages app can tackle advanced calculations and even convert numbers to different formats.

Whether you're looking to spend 100 nights on the trail or stick to a tight budget, we've found the best backpacking tents of ...