Hi - Some may already know this but i didn't and my local camera store didn't either!!!
The little stand that comes with your Caon flash (for when your using as a slave)
there's a screw hole in the bottom which you can attach to your tripod or monopod.
I just never looked so thought that other may have not....
Handing when your using the 2nd flash as a slave and want to hold it high or further away etc...