Recovering dining room chair cushion (tutorial)

I am soooo loving my new (inexpensive, yard sale find) dining room table and chairs.  I am still working on the chairs.  I am now to the 're-doing the cushion' part of the chairs. Strap on your seat belts, and here we go!!
     The first thing we have to do is remove the cushion from the chair.  Turn the chair over and look at the bottom. You should see some screws at each corner or thereabouts. My chair had four straight slot screws which I promptly removed with my trusty kitchen knife.  With the screws gone, the cushion should just fall out.
The cushion consist of 1 piece of board, a piece of foam, and 1 to several old fabric/vinyl pieces that were used to recover the seat in the past.  If you look on the bottom wood part of the cushion you will see where they attached the fabric with nails, staples, or tacks of some type.  My chair had small tacks, which I removed and recycled.  Remove whatever was used to attach the previous seat cover.  Use this piece as a template or pattern to cut your seat covering to the correct size.
     To attach the new seat cover, lay the fabric face down on a table or, in my case, the floor.  Place the seat, cushion side down, in the center of the fabric.  On one side of the seat, wrap fabric over the edge and put two are three tacks. I used the original tacks that I removed from the seat. Leave about 3" from the corner. Stretch the fabric taut and do the same to the opposite side. Secure fabric to all four sides, working directly across from each side.
    Now for the corners.  Take the corner piece of fabric and stretch it across the corner of the seat until it is snug. Tack that piece. Now smooth the side, folding the fabric over th piece you just tacked making a smooth fold. Tack this piece. Do the same to the other side of the same corner.  Continue this way until all corners are done.  Your seat should be done. If there are loose places, put extra tacks for added hold.  Replace chair to it original position and screw back into place. Woot Woot! Your seat is done!! Happy dance!!
     Pictures to come.