Journaling is NOT writing a book. It is not documenting every breath, everything they said, everything they did, everywhere they went or everyone they came in contact with. That is just way too much! If you want to do it, more power to you! However, most people just don't have the time.
If you can add three 2-page layouts a year to their album, I think you're doing great! If they are a summer baby, make sure you do birthday, first or last day of school and Christmas. That way you are getting a really good picture of their year. Three layouts a year! I KNOW you can do it!
Title (usually the event, for example 3rd Birthday, Jakie turns 2 or 1st Day of School)
Photos (1-6 a page)
Journaling (take the time to write a little paragraph or two about the event as the events don't mean much if 50 years down the road no one knows what/when or who was at the event)
That's it. That is the formula for a great layout. Everything else is just frosting.
Title + Photos + Journaling = Captured Memory
Yes, it IS as simple as that! The layout does not have to be ultra fantastic. Even advanced scrappers don't achieve that every time, or even try to. The important part is the preserving the memory. If after that you want to add the fun stuff, go for it. You can use the same formula for digital scrapbooking. I have a quick kit that shows you how to get two full layouts with minimal paper waste, feel free to use it.