Easier way to copy the path to a file or directory to the clipboard in visual studio?

Look at PowerCommands extension

http://visualstudiogallery.msdn.microsoft.com/e5f41ad9-4edc-4912-bca3-91147db95b99?SRC=Home

Among others, it contains "Copy Path" command for files and folders

UPD: Also, another option: right-click the tab of open document and there will be "Copy Full Path" command. It's built-in, no extensions needed

You can just select the file in the 'Solution Explorer' file list and hit CTRL+C. It automatically copies the file path to your clipboard.