Bondage for singles:
Get out your handcuffs and fixed them with the bottom padlock of your corset (the chain between the handcuffs is led through the padlock.).
Then you go again to the post office and send the keys to your home. The second keys (spare keys) fasten to your O-ring of your collar. Finally, put the hands at you back and close the handcuffs.
So now you can go home.
Have fun!