Useful alternative control structures?

Question

Sometimes when I am programming, I find that some particular control structure would be very useful to me, but is not directly available in my programming language. I think my

Answer 1

Sometimes, I need to have a foreach loop with an index. It could be written like this:

foreach (index i) (var item in list) {
  // ...
}

(I'm not particularly fond of this syntax, but you get the idea)