The shift from September to October is generally palpable, though many of us are still enjoying unseasonably warm weather. There's a little more bite to the air, the leaves are changing, and we're suddenly experiencing that annual excitement for Halloween. Spook-enthusiasts all over the internet are showing their glee for the impending holiday with these memes that are supposed to symbolize how pumped we all are. Twitter's been churning them out real quickly, but we'd love to see your renditions: share them in the comments!