shown in fig4 both portions are constructed from a single sheet and adapted to be folded along line 36 t shaped slots 38 and main portion 32 and t shaped slots 40 and main portion 34 are likewise mirror images and when folded will form t shaped slots 40 which will receive the rails of the card file the surface of main portion 34 has provided thereon two adhesive layers 44 and 46 each of which is protected by a protective backing 48 only one of which is shown it should be also noted that main portion 32 is provided with first and second slots 50 and 52 the apparatus is placed in its utilitarian form by first removing protective backings 48 the first and second major portions 32 and 34 are then folded onto each other along line 36 until major portion 32 contacts adhesive layers 44 and 46 which will cause main portions 32 and 34 to remain in their folded configuration a business card may then be removably secured to the index card by passing the ends of the business card through slots 50 and 52 this is more fully described in conjunction with fig5 a 5d referring first to fig5 a it can be seen that a first corner 54 of business card 56 is inserted into slot 50 business card 56 is urged into slot 50 until the entire left portion of the card 58 has been received into slot 50 business card 56 is bent outward so as to permit the right end of the business card 60 to be inserted into slot 52 such as is shown in fig5 c finally as can be seen in fig5 d both ends 58 and 60 have been inserted into slots 50.