Portland Tix

How do you find tickets to a sold out show? Do you go on Craigslist? Like if someone buys tickets but they can’t make it maybe? I have a lot of social anxiety but The Dollop is my favorite podcast and I’d love to see them when they come to town. I can’t navigate people selling tickets outside the show or however that happens. Entering and leaving places with lots of people is pretty overwhelming but for things I really like I’ll do it once in a bluemoon. Tips?