Filing of sheets of paper

A combination of a filing strip and a filing accessory in which the filing strip is of a bendable material and comprises a central elongate anchor strip and a substantially flat prong extending from each end of the strip, each prong having a width substantially greater than its thickness and having a tip portion and an intermediate portion, with each tip portion being substantially flat and being narrower than its adjacent intermediate portion and having a substantially constant width, and

• each prong being stepped to define the narrowed tip portion and a pair of shoulders at the transition from each tip portion to its adjacent intermediate portion, and in which the filing accessory has a pair of elongate members and a socket-defining element, which defines a socket, arranged on an end of each member, each socket having a substantially rectangular, internal transverse profile with internal dimensions complementary to the tip portion of the prong, and each element having a substantially rectangular external transverse profile at its free end which has a width substantially equal to that of the intermediate portion of the prong, the tip portion being entirely receivable in the socket with the socket defining element engaging the shoulders of the prong, the intermediate portion of the prong having longitudinal edges the longitudinal edges of the intermediate portion and the longitudinal edges of the socket-defining element being substantially collinear when the tip portion is entirely received within the socket such that a smooth transition is provided from the intermediate portion of the filing strip to the socket-defining element.