Commonly used methods
Method 1: Corners-in: set corners first, work inward, cuts at an opening
Method 2: Corner-corner: set corners first, go right from a corner, cuts at next corner
Method 3: Perimeter: set one corner, work around in circle, cut the corners
Rob Dykeman- ICF Information
When you're using block, work from corners to openings (from corners to middle). This will eliminate alot of cutting. The cuts you make to fit up to the opening will also adjust to the length of the wall, so you make one cut instead of two.