Here's how I make my 8x8 inserts - ie a proper 2 sided insert:

From A3 paper cut it to 400mm x 200mm (40cm x 20cm).
In Word - set the page setup to either Legal 14 or US Legal (depending on how your printer is set up)
Both of these sizes are 21.59 x 35.56cm.
Type your greeting or verse etc as near to the right edge as possible - I use a text box so that I can move it around.
You will then find it prints near enough to the edge that when you fold the paper in half you only need to trim off just a small piece to
fit the card neatly. I sometimes add a picture on the left hand side to match the front of the card. I also punch the edges with Martha
Stewart punches.
Jan



