Nothing that drastic, but I was 246 at my heaviest now weigh 200. My secret?
Bought a house.
Couldn't afford to eat out every day. No diet, no exercise, just eat more sandwiches from home and less food overall. Started off with the sandwiches, then cut out the soft drinks (made my knees feel 100 times better too) and brought sweet tea in a Powerade bottle from home. When I did eat fast food, get the normal size instead of large size. Now the broke part of my life is the norm, even though I make more money now than I did at the dealership. Only eat fast food maybe twice a week, might splurge and get a pizza once every couple of months or a big-ass hamburger, otherwise it's the $5-6 value menu stuff then I'll eat a sandwich for dinner (because my "big" meal was lunch.)