returning to work

So I am slowly returning to the working world.  I work from home for about 20 hours each week.  It's summer, so guess who is home with me all day!  Yup you guessed it, the small terrorists (although one of them is growing- I know this because I was taken to a store and forced to purchase pants for her).  But in relation to the most adults they are still small. The problem is just the boundless energy with which to torture me...and of course I am a sitting   duck stuck behind a computer in this house where they take turns. Their incessant chatter, fighting, mess making, dirt tracking, question asking activities leave me in a tizzy.