There has been a sudden disappearance of ties within the ranks of German discount retailer Aldi."Our company is open to the world," says one manager by way of explanation. After all, when a retailer constantly modernises its stores and operations, why not trendy-up the appearance of your staff?This will surely also make one seem more attractive as a potential employer to a rapidly declining number of young job seekers.The move, however, is far more revolutionary than it sounds because perfect ties have always been part of the uniform for men at Aldi. "They even used to keep them on in Australia when it was 40 degrees Celsius," says one astonished supplier.