Do you do a lot with hexagons? Would graph paper make it easier? HexiTriangleGraphPaperGenerator creates hexagonal-grid graph paper where the hexagons are divided into equilateral triangles. These triangles may be up to 2 inches (52 mm) on a side.
This is also known as an isometric grid.

Compatibility: OS X 10.8 or later, 64-bit processor