If you're like most moms, you almost never have the time, energy or motivation to exercise.

Let's step away from the donuts, take control and find a way to get fit that doesn't involve changing into expensive exercise clothes, traveling 20 minutes to the gym or take 2 hours out of our day.

We enlisted celebrity trainer Kathy Kaehler--whose famous clients incluce Julia Roberts and Kim Basinger--to create the perfect workout for busy moms. And the best part about it? It takes just a few minutes.

Today, in Part 1 of our week-long series, Kathy's going to show us how to keep those upper arms from flapping in the breeze (don't pretend you don't know what we mean). Using an inexpensive exercise band, Kathy will demonstrate a quick and easy way to tighten and tone your biceps and triceps. It's so easy, in fact, that there is no reason not to do it. So ladies, get ready to get fit!