There is a new kind of grass out there that reportedly requires less mowing than the traditional types of grass, and I mean much less mowing. The grass is called carex pansa and it is an evergreen creeping lawn that grows into a natural looking lawn but it only needs to be mowed around 4 times a year.
The grass can be planted from plugs planted around 6 to 12 inches apart. The important thing in using carex pansa is to entirely remove the old lawn first or the weeds in the old lawn will give you unsatisfactory results.
It should be noted that carex pansa is a native grass and will give you more of a meadow look rather than a formal manicured lawn look.