Check out the Sewing Space

http://thesewingspace.com/free-files/

Techniques

Applying binding

Strip piecing

Gathering

Unpicking

Perfect Pressing for Smooth Seams

During sewing, you should PRESS not iron as ironing can stretch and distort your fabric.
Pressing is an up and down motion.

* Press the seam flat on both sides.

* Press seam from side to side.

* Press seam open using the point of the iron.

* Press seam lightly from the right side for a perfect finish.

Piping

Came across a great little tip for applying piping on the Coletterie website. 

Baste your piping to your garment piece using a 1/4" seam. This holds everything in place ready to sew the piping into the seam without the risk of the first stitching showing.

 

Check it out here

 http://www.coletterie.com/tutorials-tips-tricks/tutorial-how-to-sew-piping-to-a-garment