How do you know when you're out growing your toys?

Yes, it's true we may need a bigger pool, but this reminds me of one of my favorite poems. My mom used to read Shel Silverstein a lot to us.

There's too many kids in this tub
There's too many elbows to scrub
I just washed a behind that I'm sure wasn't mine
There's too many kids in this tub.