Feature flags are gaining a lot of traction and many of us are familiar with using them to roll out new features. However, there's a lot more that they can do. In this talk, I will very briefly revisit some of their standard use-cases. Then we'll talk through a number of the more creative use-cases that we've used them to solve. Come learn how you can leverage feature flags to help remove dead code, test the parity of new code, evaluate the cost of a new technology, and more.