How do you get rid of saggy bat wing arms? Flabby legs?

I have lost 55 lbs. and have the saggiest and loose -skinned arms and was wondering if there are any kind of exercises that will help tone or firm up that problem spot?
My legs are also really flabby, loose skin. I walk/jog 4 times a week and it has helped slim my legs down but the loose skin is ugly. HELP!!

unfortunately no amount of exercise will fix excess skin. Your skin is stretched by being overweight and how much it "shrinks" is determined more by genetics than exercise.
You CAN however tone the muscles underneath the skin. My arms look awesome as long as I don't hold them up lol

 Surgery. I have lost well over 200+ lbs, so trust me, I know how bad saggy skin sucks, but skin is skin - you can't tone it up. Ive been relatively active throughout my weight loss, and while I definitely have some nice muscles, ive still got the skin.