Cumulatively, saved keystrokes can add up to a lot of saved time. Or at least it can feel that way. So the difference between using ``++L#macro_arg++`` and ``++L###macro_arg++`` to create a wide string literal may seem perfectly justified because MSVC yields the same result for each. But if you ever need to switch to another compiler, that saved time - and then some - will be lost. So it's best to use the cross-compiler standard from the start.
