Send your best examples of the eternal hipness of Windows 7 to me at contests@gizmodo.com with Cool Windows in the subject line. Save your files as JPGs or GIFs, and use a FirstnameLastname.jpg naming convention using whatever name you want to be credited with. Send your work to me by next Tuesday, and I’ll pick three top winners and show off the rest of the best in our Gallery of Champions. Get to it!