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Blake Lively - In 2016, Lively endorsed the idea of putting a comment box at home. "The kids could leave comments on what you could do better, or what the other kids could do better," she said, adding that it would make her and Reynolds the proper bosses.

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Kate Middleton - The Duchess of Cambridge reportedly practices active listening with her kids, which is why she's often spotted crouching to their level.

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Jada Pinkett Smith - The 'Red Table Talk' host has shared a lot of parenting advice, including: treat your kids like adults, encourage their individuality, acknowledge your own shortcomings, and forgive yourself.

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Jennifer Garner - Inspired by the story book 'Yes Day!', the actress gives her kids one day every year where she says "yes" to anything, within reason. This balances out all the "no's" and allows her to be the fun parent.

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Brad Pitt and Angelina Jolie - "We have a policy in our family, no secrets," Pitt told Extra, acknowledging that the information must be presented in an age-appropriate way. "We want everything to be on the table and any questions they have, for them to ask."

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Hilary Duff - The actress's advice is not to forget to pack extra clothes for yourself too. She confessed she learned this the hard way when her son had a major diaper blowout on an airplane, and "He had an extra outfit, but I didn't."

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Busy Philipps - "I use sibling rivalry," the actress confessed when asked about her parenting hack. "I'm like, 'I feel like Cricket's going to finish her broccoli first,' and then Birdie's like, 'I can finish it first.'"

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Jerry Seinfeld - Whether you’re well-off or not, kids can act entitled. On 'Comedians in Cars Getting Coffee,' Seinfeld said, "You know what I say [when they ask if we're rich]? 'I am. You're not.'"

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Kristen Bell - Bell doesn't want you to compare yourself to other parents, and said, "In the age of social media, when you can edit your life in beautiful pictures, it's important to remind moms that all of us are wearing yogurt and all of our hands smell like urine."

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Chrissy Teigen - The star wants moms to know they should take care of themselves and always reach out for help with postpartum depression.

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Sarah Michelle Gellar - The actress teaches her kids about waste and money management by making them pay if they ask for something and don't eat/drink it. "Someone has to pay for that milk."

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Conan O'Brien - Having a sense of humor is vital in parenting, and the TV host has it in spades. "Just taught my kids about taxes by eating 38% of their ice cream," he tweeted.

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Will Smith - As kids get older, they become more reluctant to share their lives with their parents, so the Smiths set up a “circle of safety,” in which the kids can share anything and not get in trouble for it.

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Penélope Cruz and Javier Bardem - Cruz is reportedly a big fan of the Resources for Infant Educarers strict parenting method, which involves treating your kids like adults, and not using "baby talk."

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Christina Aguilera - The singer wanted to normalize her sexuality and did so by regularly being naked around her two-year-old son. She said, “We're art collectors, there are a lot of female nudes around the house ... It's only weird when you shame it."

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Brandy - The singer knows it’s controversial, but she told Parade that she wanted to be a friend to her daughter first, and a mother second, explaining that her daughter will be more open and honest with her, and she’ll learn to trust herself. 

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Jenna Fischer - Save yourself a lot of money and bring your toddler to IKEA, which the actress calls "Disneyland for 18-month olds." She grabs coffee, lets her son explore the safe lanes of the furniture store, and they end with ice cream.

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Reese Witherspoon - The actress says it's normal to get upset at your kids. "I always say if you aren't yelling at your kids, you're not spending enough time with them!"

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Ana Gasteyer - The hilarious actress tweeted, "Parenting tip: if you want to get your kids ready to leave the house faster, relentlessly sing 'All That Jazz' in a Billie Holiday voice." 

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Ryan Reynolds - The actor tweeted some wisdom, "Tip: It's important parents take little 'time outs' for themselves too. Even if you feel pretty guilty when you return 14 years later."

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Kelly Ripa - The TV personality is quite strict with her house rules, and after punishing her daughter, she said, "I don't think she likes me, but I don't care. I'm like, 'I'm not your friend! I'm your mom.'"

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Drew Barrymore - Barrymore's advice for working parents, as she travels quite a bit, is to use a calendar where you circle the days you're gone and it's your kid's job to cross them off. This establishes security, trust, and teamwork.

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Jessica Biel and Justin Timberlake - Biel stressed the importance of talking to children about sex and their bodies, while using the technical terms, from an early age to limit the all-too-common shame. 

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Tamera Mowry - The actress wrote that setting a bedtime routine and using sound machines, which "provide subtle, rhythmic background noise that makes them feel more at ease," are the best ways to get kids to sleep.

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Ashton Kutcher and Mila Kunis - If you can invest in tech to help your kids sleep, do it. This celeb couple got a robotic oscillating crib which detects how loud the child cries and oscillates accordingly to get them back to sleep. 

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Gabrielle Union - For babies with gas, the actress advises using a distracting "gas be gone" dance, which moves her baby's legs to a song while adding some pressure to her stomach.

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Sheryl Crow - "I'm all about bribery when it comes to my little kids eating," the singer admitted, explaining that she bargains with her young kids to get them to do what she wants. 

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Kris Jenner - The momager’s advice to her daughter Kylie after the birth of Stormi was to "just enjoy every moment, because it goes by so fast, just so fast. In a blink of an eye," Bustle reports.

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Justin Baldoni - The actor's mom actually told him his best piece of parenting advice, which is to trust your intuition. "We have more access to advice and opinions than ever before," he said, but parents know their children best.

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Kristen Bell (again) - The actress is all about the parenting advice! She says talking to kids about race early on, and making sure they're not "othering" any races, is vital. "Kids will notice differences," she said, "The topic needs to be open."

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Mayim Bialik - The actress, neuroscientist, and author of 'Beyond the Sling: A Real-Life Guide to Raising Confident, Loving Children the Attachment Parenting Way,' strongly advocates for sleeping with, carrying, and extended breast-feeding for kids.

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Holly Willoughby -

Willoughby discovered what she calls the "floppy arm test," which involves picking up your baby's arm and seeing if it drops down heavily, to check if they're ready to sleep. 

See also: Celebrities who still live with their parents

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