You're not impressed?
Well, you should be because this one little punctuation mark is the strongest you're going to find; it can hold two complete sentences together with its bare hands (or at least that's what you'd say if it had hands...)
Source: http://thatspeaker.typepad.com/.a/6a00e54fcdc84d8834010537167227970b-500pi
Source: Made by me w/ help from http://www.flickr.com/photos/steveaux/2916876452/#/photos/steveaux/2916876452; http://www.flickr.com/photos/bigblackbox/4806172412/#/photos/bigblackbox/4806172412; & http://www.flickr.com/photos/defenceimages/
Source: Made by me