You can also create a shortcut to %windir%\system32\mstsc.exe which is really the same path provided by citantic accept that it uses system variables instead of the pure path. And, if you want to get fancy-schmancy you can add a space followed by /v:computername (or replace computer name with computer IP address). That will open Remote desktop automatically configured to attempt to connect to that specific computer.
Finally, if you have Start8 installed which replaces the Windows 7 Start Menu (highly recommended), you can also find the Remote Desktop application at All Programs, Windows Accessories, Remote Desktop Connection. Good luck!