Canadian singer-songwriters Tegan and Sara (MySpace) are coming to the Electric Factory tonight, and in honor of that occasion, we wanted to let you know we think they're cool, and that it's totally not just because they're lesbian identical twins. In fact, we didn't even know they were lesbian identical twins until we read their Wikipedia page. No, we like Tegan and Sara because we've been listening to their most recent album, 2007's The Con,......