Bonnie Hunter has some great info on her site. My best tip...use starch and cut your pieces a little bigger than you need. The little bit of waste is much easier to live with than pieces that are too small
I don't use any special rulers. I just trim with a rectangle or square ruler once the top is done, depending on how large the piece I am trimming is.
http://quiltville.blogspot.com/2005/...nt-quilts.html
http://quiltville.blogspot.com/2010/...ing-chart.html