It's hard! It's kicking my butt. I have muscles that I haven't used in years... you know those abdominal muscles people supposedly have? Mine have decided to make a reappearance after a ten year vacation. =P
But 20 minutes on Monday, 25 minutes yesterday, and 20 minutes today. Progress to being a less-sedentary Jenny. =)
Now if you'll excuse me, I'm about to go tear someone's poor manuscript apart and line-edit it for tense problems.