I checked a bunch of files from TFS in VS2010 and made changes to some of them. How can I see which files I really made changes to?
Use TFS power tools. Open the command line of the visual studio, go to the workspace and enter
tfpt uu /noget /recursive
This will cancel any pending changes to files that have not been modified.
View -> Other Windows -> Pending Changes , ? , . ( ) - VS2010, VS2012.
View -> Other Windows -> Pending Changes
To add hawkke to the answer, I use CTRL-K C to show a window of pending changes - very useful.
(press ctrl-k and then the "C" key right away).