When a kid goes from being an only child to having a new baby brother or sister, sibling rivalry can kick in. Even kids who are excited to be a big sibling will need some time to adjust. They now have to share their parents' attention and time, their space, and even (someday) their toys. This transition period can lead to aggression, regression, jealousy, and sibling rivalry.

As you prepare for baby, you may be asking yourself: How can I stop sibling rivalry with a newborn? How long does it take for siblings to adjust to a new baby? Now take some deep breaths and remind yourself that every child with a new sibling goes through this. With a little patience and grace, your child and baby will be best buds before you know it.

To help ease this tough transition, we've got 25 tips on how to prepare your child for a new sibling, how to introduce your kiddo to the new baby, and how to prevent and stop sibling rivalry. For even more help preparing for baby, check out our Guide to the Best Baby and Kid Gear, Toys, and Hacks, including our lists of the best diaper subscriptions and great baby sleep aids.

"Random acts of kindness"... this phrase has been used a lot since the mid 90s, when the Random Acts of Kindness Foundation was formed. Random acts of kindness are all about doing nice things for friends, family, and strangers—from simple acts like sharing a smile to larger endeavors such as volunteering at a charity—just for the sake of doing them. The idea is that spreading kindness brightens the day of both the giver and the receiver and encourages the receiver to perform their own random acts of kindness, creating a contagious wave of good deeds.

Of course, adults aren't the only ones who can benefit from random acts of kindness. Teaching kids kindness from a young age helps them learn good manners and respect, increases their own happiness and self-esteem, and helps them grow up to be kind adults.

Need some inspiration? Here are 25 random acts of kindness ideas to share with your children. The list includes random acts of kindness that kids of all ages can do at home, in the community, and at school. For more ways kids can show kindness to their loved ones and to the Earth, check out our list of 101 questions to ask grandparents about their lives and our ideas for how kids can help fight climate change.

There's something so special about DIY Christmas ornaments that make them the stars of the Christmas tree each year—especially when they're made by little hands. Fancy store-bought ornaments may be pretty, but they just can't hold a candle to salt dough handprint ornaments, popsicle-stick reindeer, seashell snowman, and other DIY ornaments kids can make themselves (or with a little help from a grown-up). Plus, DIY Christmas ornaments make great gifts for friends, family, and teachers.

Here are 25 DIY Christmas ornaments to make with kids of all ages, from toddlers and preschoolers to tweens and teens. For more crafty holiday fun, check out our list of 101 Christmas crafts, games, and activities for kids and our Christmas Activities and Holiday Fun Guide for Kids.