I'd like to clear my (as I call it) not checked-in items history of source control in visual studio.
These items are there because in a project I did include the project via adding the actual windows folder to the team foundation server; and there are bin files and resharper files that are never going to be checked-in.
Everytime I have to check-in something, I need to scroll all the way down to my clearly added project files; and that's annoying.
Thanks in advance.
These files should never have been added to source control. Your best bet is to delete from the TFS.
You should only check-in files that need "version control"; Resharper files, bin\
& obj\
folders, *.suo, *.user files, etc. should be removed from TFS.
When adding new files to TFS, it has a filter no to add these to source control. See here on MSDN for more details.