I use double spaces because it is a harmless habit that typesetting systems correct when it isn't appropriate. In fixed-width code, it looks better imho, so I

I use double spaces because it is a harmless habit that typesetting systems correct when it isn't appropriate. In fixed-width code, it looks better imho, so I continue to use it there. Since typesetting systems remove it anyway though, there isn't any reason to do it when using them.