+5  A: 

I mouse over the tab and it shows me the file directory.

Also since you are using Resharper you can use this keyboard shortcut and it will highlight the file in solution explorer.

Alt+Shift+L

Since you are using Resharper you can use its navigation instead of Visual Studio's. In this example you are looking for Default.aspx

Ctrl+Shift+N

That shortcut will bring up its file search screen. Type "Def" and pick the one based on which folder you want.

Brendan Enrick
Word. There are only so many tabs visible at once though.
jayrdub
Anyone know if there is a shortcut like this for visual assist x?
Brian R. Bondy
+1 for new ReSharper shortcut that I didn't know. That's the great thing about SO - you learn something new every day.
womp
A: 

Try right-clicking the empty space next to a tab just above the code window. You will see some options for a new "tab group", and you can choose horizontal or vertical.

If you have enough monitor space, you should be able to keep your similarly named files in different areas.

Good luck!

Mike
A: 

If possible at all, avoid having duplicate names. Not only that navigation might be confusing, it might get even worse.

I have experienced rather strange behavior with duplicate file names within the same solution, both with Visual Studio (e.g. when debugging) and especially with third party tools, which were not able to distinguish between the files.

It seemed to me that this is especially a problem with resource file names and project names.

0xA3
A: 

If you hit Ctrl+Tab it will bring open a document list with preview and the full file path.

BarrettJ
Quote from the initial question "I know ctrl-tab gives the full path, but it is still a little cumbersome as you have to arrow around to see the full path, and when there are lots of files open it isn't really any faster than using solution explorer."
Brendan Enrick