She started off the Porchlight SF storytelling series seven years ago with Arline Klatte, her co-worker and cubicle-buddy at SFGate. Porchlight’s rules are simple â€” six storytellers spin ten-minute yarns based around one central theme. No memorization, no notes. Tonight, as part of SF Sketchfest, the series takes on the Purple Onion. Storytellers include: UCB funnyman Matt Besser, local comedian W Kamau Bell (who told the first ever joke about President Obama), and Oaklander and Playgirl writer Chelsea Peretti.