If you're a user of Alfred and CloudApp, I present to you this Alfred extension to quickly upload your files through the CloudApp application. This goes directly through the CloudApp application, so there is no need to enter login details into any part of the extension script.
Requires the CloudApp application to be installed.
Get It Working
Type 'cloud' into Alfred.
Continue to type the filename you want to upload and hit enter.
Use the file actions menu in Alfred.
Keyboard Shortcut / Hotkey!
Command + Option + U whilst selecting a file in Finder.