Everyone knows they should exercise – in fact, some don’t even need to but want to track their activity anyways. Meet FitBit. FitBit completely stays out of your life by being as unobtrusive as possible – just a little bit bigger than a stick of gum. Powered by the same tools found in your Wii Remote and with an amazingly beautiful set of data visualizations to check-in on your activity online, FitBit is a steal for $99.