With KJ Clipper you can do true WYSIWYG (what you see is what you get) layout for printing.  This makes tasks such as designing flyers, service programs and greeting cards very easy to do.  How easy?  I'll show you.

Let's suppose the little rug rat next door has a birthday today.  First, I take her picture (we're in a pretend scenario here – I got this image off the internet, because I don't know cameras from cow flop).

Next, I extract her image and then place it in a neutral background.  I use the edge-select tool to extract the girl's image.

I use the rectangular selection tool on a blank portion of the canvas, flood fill the blank selection with a background color, and resize the empty background to an appropriate size.  Then I drag the girl's image over the background, feather her in and group the foreground and background.

Now for the fun part.  With the rulers up (the default state) the print footprint follows the bottom edge of the top ruler and the right edge of the side ruler.  The printable surface is bounded to the upper left where the rulers meet, and to the lower right according to the paper size and orientation as specified in the File/Print Setup menu.  So, if your paper size were 8.5 X 11 inches and the orientation were "Portrait" then the bottom right boundary of the printable surface would be at the intersection of a vertical line extending down from the 8.5 point on the top ruler and a horizontal line extending to the right from the 11 point on the side ruler.

Here I have used the grid tool to mark the lower right boundary.  I also have used the grid tool to mark the half-way vertical and horizontal fold lines on the paper.  This helps me center the different card elements, such as the front cover of the card as shown above.  Note that I flipped the cover image both horizontally and vertically, so that the image is properly oriented after the paper is folded.

Next, I add some text to the front cover and put together the inside content using the supplied clip-art.

Before printing, I make sure that the "Borderless" box is checked under Print Setup/Properties/Features.

Finally I print and fold it.

I have become an artsy crafty geek!  Sink me!