I spend a lot of money on fresh herbs, and also a lot watering my hated lawn. Would be nice to swap one for the other!

May as well:

Mediterranean herbs are some of the most rewarding plants you can grow. Their leaves flavor everything from meats, soups, and stews to pizza and spaghetti. And the plants add beauty to kitchen gardens - many are evergreen in mild climates. Most tolerate drought and less than perfect soil (though they prefer excellent drainage).