Finding peace of mind when there still is so much left undone-A diary study on how job stress, competence need satisfaction, and proactive work behavior contribute to work-related rumination during the weekend.

Unfinished work tasks have been identified as a significant job-related stressor in recent occupational stress research. Extending this research, we examine how and when not finishing one's tasks by the end of the work week affects work-related rumination at the weekend. Drawing on control theory, we examined competence need satisfaction as a mediating mechanism that links unfinished tasks at the end of the work week to work-related rumination at the weekend.