At some point after I'd lost about 40 lbs, I started working out at home. I worked out every morning in my nightgown and I just kept staring at my legs because there was so much loose skin there. I was certain that the more weight I lost, the worse it would get and I would require surgery. But now, at 90 lbs lost, I look way better. Because as it turns out, what we consider to be loose skin, is actually fat.
Pull the skin under your eyes. That is loose skin. When you pull the "loose skin" on your arms, you're actually grabbing fat. As you lose fat, it will get better. I've seen people claim that if you end up with less that 20% fat, it will disappear completely. I don't know if that is true but I know that I gained 80 lbs in 8 months and then lost 90 and I have no loose skin. I can pinch a tiny bit of it in some areas but people who've always been at a healthy weight can do that, too, it's not a problem. So, just keep losing weight.
I started on 05/30/10 at 253. After almost 4 years and many, many breaks, I reached 152 on 03/19/14. Now I'm trying to reach 130. After I lose the regain.