Small tricks for Ubuntu
If one day all your icons are always on the left side of the desktop and their position is not remembered between the sessions: check the permissions and make a correct setting:
$ find . '!' -user $USER and look if "./.local/share/gvfs-metadata/home" is present into the list of files not owned by you $ ls -al ./.local/share/gvfs-metadata/home will show who is the owner (generally this is "root") $ sudo chown -R your_user_name:the_group .local/share/gvfs-metadata/home
Logout and re-login: the problem should be gone.