I'm in the process of appealing for my sleeve and in the meantime i have done a little research, this website has alot of helpful hints that i thought was worth a try.
http://www.livestrong.com/article/31845-tighten-loose-skin-weight-loss/
I was also watching a TV show and one good tip was taking a bath with 1 cup ebsom salt and a cup of green tea (8 teabags) i dont recall word for word but it is supposed to help get toxins out and tighten up the jiggly skin
Good luck!! and Congratulations!!