This document discusses brand migration and collaborations. It begins by describing how a discussion about a beer-infused beauty product line led the author to notice many brands extending into new areas. It then examines what makes for a successful brand migration, such as maintaining a meaningful fit with the brand's core identity and offering real benefits to customers. The document provides examples of both successful and unsuccessful brand migrations. It also discusses different types of brand migrations and considers when collaborations between brands can be beneficial.