Wallet Calculator: Chic and Practical

The Lexon Credit Card Calculator ($16.50, unicahome.com) is kind of a practical item but it's an essential (at least to me). I like to add up all my purchases before heading to the counter or calculate a tip for the waiter. I like to carry a calculator with me but sometimes I leave my calculator in my tote or at home. Which is why I like this one, because it fits right in my wallet and has a sleek design.

I know there are more affordable calculators but I just like the look of this one.