If you require people to perform a sequence repeatedly, make it easy to do, but realize that the trade-off is that people may make errors because they no longer are paying attention.

But when designing an interface for finding a note in a small pile of personal notes, or building an app to organize a small team’s working documents, most of the “finding stuff” interface ideas are in play. It’s in these situations where I want to make the argument:  prefer interfaces that let the user incrementally move towards the right ans

If you have icons at your Web site or in your Web or software application, draw them from a canonical perspective.

If possible, make the amount of time it takes to do a task or bring up information consistent, so people can adjust their expectations accordingly.