You were sure you'd remember what she said at six.

Dana's daughter is six, with a backpack and a lot of curly hair, holding a dandelion clock up as high as she can reach. Dana is looking at her phone. Earlier, in the kitchen, the same kid was twirling in a costume made of cardboard and tulle, and that went by too.

Then the phone goes down, and Dana kneels on the sidewalk to get to her height. That's the part worth keeping. If your kids are grown, you know what comes next.

You have the school pictures. You have the crayon drawings in a box in the closet. What you don't have is what she said about the moon, word for word. You were sure you'd remember it. Everyone is.

It takes one line. "Says the dandelion is a wish that hasn't decided yet." That's a whole entry, and it's still there when she's forty.

It arrives in a linen travel bag. Inside: the premium leather cover, two 76-page inserts (one lined, one blank), a clear zipper organizer insert for the tickets and notes you want to hold onto, and the charm you choose. US shipping is free.

Not in the box: a pen, the clips, the ribbon, the stickers and the extra charms you see in the video. Grid and planner inserts are sold separately.

One customer told us in a comment in September, "I have kept a journal for my grandson since he was born." You don't need to go back to the beginning. Start with what they said at your house last Sunday.

Someday you hand it over. Or they find it. Either way, they'll hear themselves at six, and they'll hear you writing it down.

Kids don't say the good one on a schedule. Three weeks of nothing, and then something about the moon in the back of the car. A Momento has no dates printed in it, so those three weeks don't leave a row of empty squares.

When the pages are used up, the insert slides out and goes in the box with the drawings, and a new one slides in. Refills start at $12, about 76 pages each. The lifetime warranty covers the binding, the cover and the hardware.

The Pocket cover is 4.25 x 6.89 in (108 x 175 mm), with pages of 90 x 163 mm. It's the one for a purse, right where you'll need it. The Classic is 4.72 x 7.87 in (120 x 200 mm), with pages of 105 x 190 mm. That's the one for longer entries at a table.

Will your own inserts fit? Traveler's Notebook Passport inserts fit both sizes. A6 and Hobonichi Weeks fit the Classic only. A5 and B6 are too big for either.

The Momento is 50% off right now: the Pocket from $69 and the Classic from $89. The charm is free, US shipping is free, and you have easy 100-day returns.

You're the kind of person who kept the drawings. Choose your size and your charm. Tonight, write down the last funny thing a kid said to you, even if it was thirty years ago, if you still have it. Especially then.