I imagine it would be a good way to keep them active but out of trouble on rainy days, Lil. For us it's a chance to exercise together, but not too strenuously (too out of condition for crazy fitness regimes) and in the house so we don't need to get a sitter - perfect.

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"Time flies like an arrow -
Fruit flies like a banana"

M Y - N A U G H T Y - P I C T U R E S ! !