Maggie has found what I remember being a very fun activity when I was little. When we set her in the shopping cart and start going across the parking lot, she says, "Aaaahhhhhhh." Remember how that gets all vibrate-y from the gravel-iness of the parking lot? It's awesome.
The problem? You actually grow out of this. I remember trying it when I was too heavy for the cart to vibrate much anymore, and all that came out was my, "Aaaahhhhhh," exactly as I said it. No rumble. What a disappointment.
For now, I really enjoy hearing and seeing Maggie enjoy this little piece of childhood magic. Hopefully we can get it recorded before it's too late. ;)