Some of you asked how I did this. Pictures aren't the best. But you will get the idea.
I cut my strips 2 inches wide. You can use whatever size you want, just be consistant.
Pick the two strips you want for the foundation square.
Sew those two strips together
cut them into two inch segments (if using two inch strips)
Choose next strip and sew these segments to it
Cut into segments
Press, add next strip
To cut into segments line up your ruler on the bottom and the side
continue adding strips until you get the block the size you want.