Apartment Guru: Loud, Little Neighbors

Dear Apartment Guru,
My upstairs neighbors have twin three-year-olds. It seriously sounds like they are running a cattle ranch or a rugby team up there. I know they are trying really hard to work with me- they've spent more than $1,000 on rugs and pads and I know they have the kids remove their shoes when they come in. (I know, because I can hear them screaming "Take off your shoes!") So, other than amputating their feet or my ears, what can be done?

-Twitching A Little Bit in Brooklyn