The Fast Company staff interviewed celebrities and leaders in their fields about what their most productive habits were and how they make the most of everyday, especially when they're crunched for time. Here are a few tips and tricks from names you may know that could help the way you run your business:

Kevin Hart, Actor, Comedian, and Entrepreneur:
On staying busy: "Once you’ve accomplished a goal, you’re all done. And I don’t ever want to be all done." On collaborating: "I don’t walk into a meeting with a ‘me, me, me’ attitude. I walk in and say, ‘How do I become your partner?’ "

Sundar Pichai, CEO of Google
"Nothing makes me happier than a product review in which I can sit with the team and they’re showing me something they’re building. Being able to react to it and think through, ‘When users get this, what will their feedback be?’ I’m always on a quest to do that better and do more of it."

Andrew Zimmern, Creator and host, Travel Channel’s Bizarre Foods series
"No is the most powerful word in the English language. Saying no to something means you’re able to say yes to something else that may be more important. I’ve had to do a lot of self-coaching to learn to say, ‘Let me think about it and get back to you.’ That helps me put space between my thought, which is: Do it, and my action."

Cathy Engelbert, CEO of Deloitte
"I am responsible for almost 80,000 people. I prioritize people over tasks. One Note allows me to put different tasks [involving] each of my executive-team members in a tab. That way when I talk to them, I can be more effective, because the five things I wanted to talk to them about [are right there]."

"You cannot be insightful if you’re deluged with information. We’re all drowning in data. We all need moments of recovery. For me, that includes not going right to my phone when I wake up in the morning. I got on a plane about six months ago, and I forgot my phone. For two days, I didn’t have my phone, and nobody died."

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