So. I've been using bitcoin for far to long to not know this... But here it is...

Lets say hypothetically i want to send someone some Bitcoin, and that person gives me their address. But they get's a lot of bitcoin from many people all the time on that same address.
How do i tell them what my sending address was?
I google'd and nothing useful came up... I looked at my previous transactions with blockchain.info and they seemed to have different sending addresses.
Is this even posible?
PS. I'm using the standard Bitcoin-Qt wallet
Hello other forum newbies...
Please use this thread to spam your posts after my answer has been answered. Thanks.
