How to make abstract art

Using a straight edge:

1. Pick a point anywhere on the sheet of paper that is not too close to the edges.
2. Draw 4 non-perpendicular lines that branch out from the selected point.
3. On each of those 4 line segments, draw 1-2 non-perpendicular lines that branch out from them.
4. On each of the existing line segments, draw perpendicular lines connecting a line segment to its neighboring line segment in a random fashion. No two lines may intersect (cross) each other. For clarity: the lines must be perpendicular to the starting segment, but need not be perpendicular to the neighboring segment.
5. Recursively execute #4 within the shapes and subspaces formed until satisfied.
6. Draw a small number of perpendicular lines that branch out from the lines enclosing the larger spaces. These lines will not join two lines together.
7. (Optional) If there exists a large amount of unoccupied space on the page, repeat the entire process until satisfied.

Voilà!