I am a huge fan of foursquare. So much so that my smart car is covered with a set of foursquare stickers. If you're a fan like me, there's an application for the Mac that will help you conquer the badge quest that is foursquare. It's called foursquarex. It allows you to check-in to locations on your Mac. This is useful if you forget your smartphone and especially if you don't even own one. Now you can check-in with the rest of us crazies. Just remember not to swamp your Twitter feed or Facebook wall as it will cause some unfollows/hides.
Download foursquarex here.