Comment 52 for bug 1048059

The workaround with adding a subdirectory with the username worked for me as well, but there is another method that works too:
After adding the line

tmpfs /media tmpfs defaults 0 0

to /etc/fstab and rebooting (or 'sudo mount -a'), the user directory below /media is automaticalliy created and USB sticks etc. are properly mounted.