I'm new to Austin and want to marg my way through town. I love that this place is packed with good food and drink but if I don't start small and basic I'll never figure things out. I know all about Mexican martinis, but let's stay focused here. Margaritas. I need real lime, I need to avoid W 6th, and I need to stay in central Austin. Please help me. I've been to Guero's and Trudy's already, so what's next???