Focus on today's tasks rather than worrying about tomorrow. Procrastinators often fail to finish today's work while planning tomorrow's tasks. Maintaining focus on one task at a time is important. When employees abuse drugs or alcohol at work, it decreases their ability to concentrate on tasks and endangers others. Drug testing helps motivate employees to stay clean while at work so they can focus on tasks rather than dealing with emotional problems. Concentration and focus are necessary for companies to get the most value from their workers, so establishing standards like drug testing is important.