I think the key to successful, long-term maintenance lies with the
conscious brain, not the subconscious. So my opinion is that hypnosis wouldn't be of much benefit for keeping weight off. Maintenance means thoughtful, mindful choices, made with knowledge and understanding of nutrition and calories. Maintenance means a commitment to move and use our bodies. Maintenance means always recognizing that we're in control and that our daily choices determine whether we will keep weight off forever or become another sad regain statistic. We need to be thinking, always thinking, always aware of our choices, always knowing that the power to keep the weight off is entirely in our hands and under our control. These are all part of our conscious brains.
So to answer your question of how do you keep it off? Exactly the way you lost the weight! The mantra of our Maintainers forum is:
Maintenance looks just like losing, with a few more calories. And since weight loss is easy for you, then maintenance should be a breeze.
While you're losing, you're assembling your personal tool box of skills and strategies for weight loss. So once you reach your goal, you have all the tools you need for lifelong weight maintenance. Like Robin and Jay said, there's no going back to old habits and lifestyles. The journey continues; reaching goal is only the beginning of our lifelong commitment to healthy living.
We reach goal -- yay! -- and get up the next morning and do exactly the same things that we did the day before. Nothing changes (except you get to shop for a lot of cute little clothes!) You'll still count calories (if you're a calorie counter), go to the gym, plan your menus, and do all the things that helped you lose the weight. You get a few more calories (which is awesome!) but the underlying framework never changes. I've been at my goal weight for more than seven years and a day in my life today is indistinguishable than a day in my life in 2001 - 2002. In a nutshell, that's the secret of how we keep the weight off -- simply continuing to do the things that caused us to lose the weight in the first place.
We would love to have you join us in Maintainers!