This is interesting. I tried a very similar strategy and I was able to maintain it for two months, and then I found that I would collapse unless I made general exceptions (such as "I can do it once a week" or "it's okay if I'm at a restaurant").
A similar idea is The No S Diet.
In my experience, I think it is key to only be strict in regard to your prohibitions (& must-eats).
For instance, if my prohibition is specifically against fast food restaurants, a bacon cheeseburger at a fast food place is 100% forbidden, but a bacon cheeseburger at a casual dining ("sit down") restaurant is okay.
In this way, while the caloric intake might be the same in either case for that particular meal, over time I cultivated a habit of not eating based on convenience and impulse and I was able to generally better plan my meals and gain...
Repositories are awesome, and we should have more of them.
I recently completed BJ Fogg's Tiny Habits, and it's a pretty lightweight way to install new habits (recommended). However, I realized I could use a better repository of useful habits.
So, please use this thread to suggest habits that you've found useful. Bonus points for evidence/anecdata of usefulness.
Obviously, 1 habit per comment makes upvotes a clearer signal of collective approval.