Get your UX research processes and materials in order before you start. Research is like kitchen work: the better you prep, the faster and cleaner the work goes. If you don’t prepare, you end up with a huge mess and a kitchen on fire. Always set your ingredients and processes up so they’re easy to reuse as needed.
Donald A. Norman
An American researcher, professor, and author (The Design of Everyday Things). As Apple’s User Experience Architect (90's), he became the first person to have UX in his job title.