A line organizer (1) comprising: a base (2); a retainer (3) attachable to the base (2) for retaining a line between the base (2) and the retainer (3); a first connector (4) on the base (2); and a second connector (5) on the base (2). The line organizer (1) is a first line organizer (1), and the first connector (4) on the first line organizer (1) is attachable to the second connector (5) on a second said line organizer (1a) to connect the first and second line organizers (1,1a) to each other.