02/21/2012 06:04 pm ET Updated Apr 21, 2012

"I'm Going Food Shopping (At 5 Different Stores)!" (VIDEO)

What's the prime number for food shopping?

By which I mean:

What's the fewest number of stores you can possibly go to and get everything you need?

Most weeks, I go to at least three stores. Some weeks, it's five. If I throw in a specialty store (liquor, bakery, drug store), it's upwards of seven.

Now you do the math ...

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The reality of being a woman — by the numbers.