Thinking about buying a robotic lawnmower is one place to start. I admit, a robot for mowing the lawn is not yet a mainstream idea, and deciding to buy one may put your marriage in jeopardy. But those machines have come a long way in terms of functionality and reliability in the last five years.
There are at least ten models from three or four companies available for 2008. The early models were generally limited to cutting nothing above a half an acre of grass. There are models now that can handle up to three acres. There is a new model for professionals coming out next year that will keep 11 acres all mowed and tidy.