A while back I mentioned that you can just enter sendto in the start/run field and it would open your sendto folder. There are many of these shell folders – special folders that may be on disk, or may be fabricated by the OS. The “correct” way to reference these is with the “shell:” prefix. So you can specify shell:sendto, shell:startup, shell:favorites, etc.
The full list is in your registry at
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FolderDescriptions
Note: The name in the registry does not always match the name you see in explorer.