Hi Miss B,
I am 8 and a half weeks into SS and the reality of maintenance has been on my mind too.
What Karen says about working up to maintenance level eating is absolutely imperative to keeping the weight off. Increasing the calorie intake at too fast a rate, even with exclusively healthy foods, will result in quick weight gain.
The other golden rule is that everyone's maintenance energy intake will differ. Our bodies differ, our exercise plans differ, our metabolisms and builds differ. Some people's bodies need to be on each of the steps up for longer than others to get used to the increased calories. After the 1500 cals step, don't trust a maintenance calorie calculator, work up the plans and find your own level of calories to balance your weight.
I have been thinking hard about what I consider to be normal eating. I used to think that normal eating was being able to eat midlessly, not considering calories or fat or nutrition. e.g danish and cappucino for breakfast; crisps and chocolate and a can of coke as a snack, for lunch a 6 inch baguette with bacon, cheese and mayo, cake, more coke; chocolate snack; bottle of wine in the evening with crisps; takeaway for supper.
Now I am keeping in mind that this was only normal eating for me as an obese person and I loathed the effect it had on my body.
Normal eating is whatever it takes to be healthy and look slim while still enjoying food - generally 80% very healthy with 20% flexibility.
With years of unhealthy behaviour ingrained, we'll always have to think about what we eat but maybe it'll get easier in time.
I know I can never go back to "normal" eating for more than the odd meal or odd celebratory days unless I want to gain weight.
Weight loss is the introductory step to maintenance as a slim person. I look on Cambridge as the fast-track programme.