I wish more restaurants were willing to serve half portions

[MineralMan]

10. A lot of restaurants offer smaller servings in other ways.

Some have "light" options. It's also possible to make a great meal from appetizers or starter courses, if portions are too large. You don't really save much money doing that, but you get what you want without the excess.

These days, most menus are long enough that there are ways to order just the amount of food you'd like to eat. It won't necessarily save money, but it's certainly an option for those with modest appetites. I do it all the time.