I have a very ugly card holder I use a lot, so I have decided to line it with a nice fabric. I love the result, so I will do it with agendas and whatever I can come up with; besides it has not been difficult at all.
1- The first thing is to measure what we want to line: length, edge and flap (the part of fabric we will fold inward). Cut a rectangle of fabric measuring one side, the size of the lenght plus 0,40’’, and the other side the size of the edge plus the flaps (count two flaps).
2- Next iron the hem of the whole edge: fold the fabric twice on the long sides so that the edge of the fabric remains hidden and once on the short sides because when folding the flaps it will remain hidden. Fold the corners as in the photo. You can then sew the hem of the short sides.
3– Y para terminar, doblamos las solapas, planchamos y cosemos los dobladillos de los lados largos.
3- And finally, fold the flaps, iron and sew the hems of the long sides.