- Ignore social media etiquette: While many grandparents aren't plugged in on Facebook and Instagram, it's important for the tech-savvy few to abide by some unwritten social media rules: don't post unflattering/inappropriate photos of the grandkids, don't hijack every post and turn it into a conversation, don't make vague statuses to guilt kids or grandkids, and don't add your grandkids' friends unless they instigate it.
- Suggest baby names: Choosing a name is a very personal experience for parents, and hearing others' unwarranted opinions is very difficult. No future parents want to know that Edith was your elementary-school bully or that they should name their baby after a distant deceased aunt.
- Buy major gifts without consulting the parents: Whether it's a car, a life-size teddy bear, or an iPad, grandparents should never make major purchases for grandkids without consulting their parents.
- Expect to be present in the delivery room: Whether a new mom invites her parents or in-laws into the delivery room is her choice, and being pressured either way is not helpful for anybody.
- Force beliefs on the grandkids: While you might think that it's important to raise them "the right way," you should allow children to determine political and spiritual beliefs on their own.
- Leave parents out of the loop: There's nothing more frustrating than not knowing your kids' whereabouts — even though grandparents are usually trustworthy, it's extremely important to keep Mom and Dad in the loop.