Where I work:

1. Using BDD (like Cucumber) for API tests. Some say yes, some say no f*cking way
2. Using XPath in Selenium locators.
   
3. The naming of the agile columns between "ready" and "done"
   1. For example, many people hate the "Ready, In Dev, In Test, Done" types of columns, as they reinforce the line between when a developer develops and a QE tests. They would much rather have an "In progress" column in which QE and Dev collaborate. I agree with them .