All you need is a paperclip and some tape.
String your wire through the top of the paperclip - you may have to bend and re-bend the paperclip to do this.
Tape the paperclip to the side of your desk, being sure to allow only enough room at the top of the paperclip for the wire to easily move back and forth through the paperclip.
Hopefully we won't have to worry about wires for too much longer, but use this technique for all your desk wires while you still have to. Here are some swans. Thanks, bye!