===4. Consistency and Standards===
Keep it consistent, and follow industry standards. If everyone places the save button far right and cancel button left consider doing the same.
[[File:Usability-consistant.png|thumb|none|400px|Keep the UI consistent and follow industry standards]]
Make sure buttons and links are named the same thing, are located in the same place, and put where they are expected to be.
Ask yourself: do I know where to find desired links and buttons, do I know what they do, and are they always in the same place?