I don't like having an app constantly running for this, or for it to intercept all my screenshots.<p>That is why I use a hacked version of Gyazo (<a href="http://gyazo.com/" rel="nofollow">http://gyazo.com/</a>). I modified the script so that moves the file to dropbox instead of their monstrosity of a share page.<p>Gyazo is the best because you launch the app, are presented with a standard screenshot UI, and then the app closes and your URL is copied and opened in a browser.<p>Here is my modified gyazo script if you want to try it: <a href="https://gist.github.com/3390267" rel="nofollow">https://gist.github.com/3390267</a>