Hey guys,
I've managed to lose a little over 120 lbs over the last several years.  This past weekend I went in and tried on wedding dresses.  I'm looking at a strapless, sweetheart neckline gown to show off my new slimmer figure but I noticed that in the back it looks bad because I have all this floppy stuff that the dress pushes over the top (its like a combo upper back muffin top and upper back butt crack?!?!)  I'm having plastic surgery on my arms because they look pretty saggy after the weight loss but I'm hoping I can just tone up my upper back.  Does anyone have any specific exercises (that don't require a gym membership) that I can do to tone this up some?  
I have over a year till the wedding (luckily) and I'd like to figure something out soon so I can start on it
Thanks