keeping track of everyday things with 2 different age kids question

Priscilla • My name is Priscilla, I'm 20. I have a son name AJ he is 10 months and I have another one on the way.

 

How do you keep track on your kids school schedule, activities, lunches and things they say or do that you want to remember & for babies how do you keep track on feedings, super changes, sleep, etc?