Taking 20 or Taking 10

A skill check represents an attempt to accomplish some goal, usually while under some sort of time pressure or distraction.

If you're not in immediate danger, you can take the extra time to guarantee a roll of 10 (success at most mundane tasks) or 20 (when faced with a difficult task, unlimited time, and no penalty for failure).

Take 10: Pass/Fail Scenario

Take 20: Attempt Until Success