To visit an ochaya, a traditional teahouse in Kyoto, a guest needs an introduction from someone the house knows. The custom is called ichigen-san okotowari, no first-time guests. Some teahouses are also homes where young maiko live.
Bills were traditionally settled on credit, twice a year, around Obon and New Year. A guide to Kyoto describes this as credit sales between people who know each other, a system that survives in the teahouses today.