22 times celebrities shared their parenting tips

When her infant son had a diaper accident on an airplane, Duff was left with a soiled shirt.

"He had an extra outfit, but I didn't," Duff told BuzzFeed. "That was an interesting last hour and a half of the plane ride. He was clean, he was good ... I wasn't. So I've shoved an extra T-shirt into my bag ever since."

"Singing Broadway musicals are a really great distraction from temper tantrums," Debra Messing said.

"Doin yo lil baby's hair without that comb hurtin her head cheat code: 1. Water 2. Argan Oil 3. Shea Butter 4. WIDE tooth comb (really wide)," the rapper shared on Twitter.

"The phrase we say as we jump out of the car, 'Hands on the circle' (the circle is the gas cap) was invented by my brilliant sister in law, and has thus far kept all kiddos safe from any oncoming traffic while I unload the trunk," Bell wrote in an Instagram post.

"You just have to go to sleep. There's a strong desire to get stuff done and be an adult, but just go to bed. Blow off sending your family birthday cards or setting the table for Thanksgiving – just go to sleep whenever you can. I just go to bed all the time," Tina Fey said.

"Staying out of kids' space can teach them to be responsible for their own decisions and mistakes. Is it their room, or are they borrowing the space while they're living in your house? If it's theirs, then they should be able to do whatever they want with it. If it's their clothes, they have the right to do whatever they want with those clothes. We have to give them some freedom to be who they are," Jada Pinkett Smith said.

"I use sibling rivalry," Philipps told Us Weekly. "I'm like, 'I feel like Cricket's going to finish her broccoli first,' and then Birdie's like, 'I can finish it first.'"

"My daughter was doing this thing lately where she was asking me for a cup of milk and not drinking it. So I told her that every time she'd ask me for a cup of milk and not drink it, I would take a quarter out of her piggy bank. Someone has to pay for that milk," Gellar told Today.

Bündchen reportedly said her son, Benjamin, would need the bathroom right after she fed him in the morning and afternoon. As part of a method called elimination communication, she would carry him around naked and take him to the bathroom when he looked like he had to go.

"Give it about five minutes, and bang," she said.

"By 5, you'll be looking people in the eye when you firmly shake their hand. By 8, you'll know how to fish, drive daddy's pick-up truck, and do cardio. And by 10, you'll be able to directly say to people, 'Great job, I like it a lot, but let's see how we can make it better,'" Johnson said regarding his daughter Jasmine.

"What do I do well as a father? I'm there all the time. I give unconditional love. And I have a lot of skills in terms of getting them to express themselves. I'm good with handy hints — if they can tell me what their problem is — 'cos I've had a lot of problems in life myself. I make an effort to expose them to things. I want them to have a deep, inner feeling that it's alright to be happy, that you don't have to be constantly manufacturing problems that you don't really have," Nicholson told Esquire.

"Don't leave it up to the mother to raise your kids. You need to be just as involved. Just being there is not being there. You have to be there and be involved. Don't sit on the sideline and leave it for your wife to do," Ice Cube told "The Life of Dad".

"I mean, there's an age of understanding, so you've got to present it in a way that is age-appropriate, but we know our children very well. [...] We want everything to be on the table and any questions they have, for them to ask," Pitt told the Los Angeles Times.

"I think it would be the greatest thing in the world to have a comment box in your home," Lively said. "I want to do it with my kids, and I'm begging my sister to do it with hers. The kids could leave comments on what you could do better, or what the other kids could do better. Like when you leave a comment with management in a restaurant."

Barrymore developed the system after her daughter Olive worried when she was coming home.

"I wanted to give her a tool, so she could understand and gauge life when I am working," Barrymore told Today. "That way she can see that I am gone at first, still away in the middle, and then coming back towards the end. She now has a good sense of my geographic place from the globe. She knows when I am leaving and coming home."

"Like to hit it hard around 4 p.m., early bird special, and then 8 o'clock [we] put the kids down," McCarthy said.

"Pay attention: I recognize it can be boring to play with young children – to tell a story over and over again, let's say – but the secret is being there. If you've made a decision to play with your children, then play with them. Don't be looking through papers on your desk or sneaking off to the computer. Turn off your BlackBerry. Lose yourself in their world. Even if you do it for a short time, it will mean a lot to you and to them," McGregor said.

As part of RIE parenting, parents are discouraged from singing to or rocking their babies. Parents are also discouraged from buying playpens, mirrors, and dangling mobiles. The principle teaching is that children need natural stimulation and relaxation.

"All the basics. It is not reinventing the wheel. Honesty, the golden rule, treating people the way you would want to be treated. All those sorts of things like kindness and selflessness, trying to do the right thing. It sounds corny when you put them into words, but I have been very lucky. It is not an easy journey. They go through the arc of life, and there could be troubling times, but you stick with it and they come through," Mark Hamill said.

"Children teach you that you can still be humbled by life, that you learn something new all the time. That's the secret to life, really — never stop learning," he told Esquire.

"I think it's important that he sees mommy not be ashamed for her sexuality," Aguilera told Us Weekly. "I mean, he's 2. We're art collectors. There are a lot of female nudes around the house. Max will be growing up in a house where it's just the norm. It's only weird when you shame it."

"Be open to any help. Many moms today feel they have to be super moms, while historically we've always had a village to pitch in. I think it's really important to know when to ask for help," Banks said.

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