My boyfriend subscribes to thetruthaboutabs.com and forwards the emails to me. They said in there to not spend so much time on the treadmill ( my friend calls it the "dreadmill") you need to be sure and exercise your largest muscles in your body to continue to burn fat after you stop. So they suggest doing more squats and lunges as the quadriceps are our largest muscles. So that is what I am doing and then just doing maybe 20 min. on the treadmill and doing spurts, like I will walk regular for 2-3 min. then bump it up a lot for 1 min. then slow it down just a little for 2-3 min. then slow for 1 min. and start over again.
Hope this helps, and good luck!!!
Lynne