In this episode of "How I Built This Lab: The Advice Line," host Guy Raz and Mark Ramadan, co-founder of Sir Kensington's, offer business advice to entrepreneurs. They speak with Pat from Dripsy about getting his kitchen sink strainer into retail stores, Lucas from Taco Shop about competing with a new Chipotle location nearby, and Beth from Busy Baby about navigating the challenges of scaling her baby product business and managing cash flow. Mark and Guy provide tailored strategies for each caller, emphasizing brand identity, community engagement, and financial planning.