Originally Posted by QuiltE

A couple of extra hints ...
* be sure you allow for seam allowances ... eg. 10" finished block required 10-1/2" cut!
* buy more than you think you need ... allows for the oops! I calculated wrong or oops! I cut wrong factor!!

Better make that three ...
* don't forget ALL fabric that will be needed ... sashings, borders and binding, can too easily get forgotten in initial calculations!