Calf - stand at your desk.  Put your figure tips on the front of your desk.  Lift up on your toes then back to flat feet.  Repeat as many times as you can.  If you need some help at first use more of your hands on the desk to take some weight off.

It's summer and it is harder to get to the gym.  It's hard to get on the computer to write.  Sorry it took so long again to post the exercise @ your desk.  I find myself doing my exercises as I go through my day instead of going to the gym since I am out doing more in the summer.  I do push ups and calf raises before I go in the shower right at my sink in the bathroom.  I do sit ups before I get out of bed in the morning.  You don't have to do all your exercising all in one shot.  You can do one exercise then when you got a minute later in the day do another.  Just keep moving and don't over eat all the summer foods that are out there.  If you need help calculating your calaries go to fitday.com you can put everything you eat in the log and it will calculate how many calaries you ate.  Try to eat 500 calaries less then the amount of calaries it says you can eat the maintain waight.Enjoy your summer!