A well-structured experimentation document will save the CRO practitioner a great deal of time and will create great reporting for stakeholders on an experiment’s details.
Someone told me that "best practice is pooled ignorance." They're right! Here are a few examples of best practices that run counter to the usual thinking.
Most segmentation strategies focus on things like gender, geographic location, race, weekend vs. weekday traffic and the like. However, I have found that segmenting by user action is far more effective at driving conversion.
Testing for testing's sake is all well and good, but to really understand your customer you should have a strategic plan and calendar that creates long lasting lessons you can draw on.