You love to write code, not scan the document well for a file name you need to switch to, and then scan the file menu drop-down list, and then resort to Solution Explorer or search. Only to repeat it a minute later when you need to switch to another document! And when you open two files with the same name there is now a game to guess the right tab from the two identically looking ones. Or maybe you recently edited a file and now don't remember its exact name - no help for you to reopen recently saved files, all tabs look the same now. Switching just between two open documents back and forth is not possible with a single keyboard shortcut and no additional windows!