Yup, been 15 years since I lost the big chunk o' weight

and again, I have to stress that it DOES get EASIER over the years, with diligence - making efforts to change those bad habits, then it becomes more natural. I don't ever forsee myself, say, eating half an extra-large pizza or a quart of ice cream in one sitting ever again!
Elana - I would totally suggest that you read (if you haven't done so already) the book
Thin for Life by Anne Fletcher. Key to Success #5 is titled "Nip it in the Bud: Break the Relapse Cycle" and the chapter on this key begins:
Quote:
At last! You've lost the weight - you're finally at your goal. But soon you find yourself "slipping" - a few desserts here and there, a social situation that throws you, a bad day at work - and you decide a hot fudge sundae would soothe your soul. A few pounds return, then some more and before you know it, your weight's right back where you started. A familiar scenario? It doesn't have to be. The good news is that you can break the "relapse" cycle.
Without a doubt, the most striking similarity among the masters is that they have discovered a way to nip weight gain in the bud. That is, they monitor their weight closely, and if they gain just a small amount, they immediately take it off. Nearly every single master has a game plan for getting back down when a small amount of weight comes back.
What I do these days - I weigh myself once a week. (I had been NOT weighing myself at all, but this summer I started weighing myself - on Wednesday mornings - just to keep track - I do NOT advocate weighing every day - for me that would freak me out!) If my weight goes up, I bring up the water, salads and veggies in my diet, switch up my exercise a bit, and write down everything I eat in my journal at night, every night, until those couple of pounds come off!