[cimmanom]

I’ve memorized landline and cell numbers for two family members and one family friend. Phone numbers aren’t all that difficult to memorize, though some repetition helps. (This was easier to do naturally back in the landline days.)

Try printing out a list of your most frequent contacts and posting it on the fridge. When you call one of them from your home, dial the number into your phone instead of selecting them from contacts/recents/favorites.

Bonus: you can call them in situations where you get cell reception but no data, or where the only phone made available to you is a land line (pay phone, hospital, police station.)

I also recommend having your kids memorize the numbers for you and your spouse, their grandparents, and at least one trusted family friend - in case they ever get separated from the adults who are supposed to be responsible for them.