I know that I can record macros with q<char> and run them with @<char>. I also know that I can run the last-used macro with @@.
But @@ is two whole keystrokes! That's one too many! Especially if I'm running that macro a lot of times. I know about <num>@<char> but what if I don't know <num> in advance?
What I'm looking for, really, is something like an interactive search-and-replace (see Interactive search/replace regex in Vim?) that runs macros. Can this be done?