Thousands of Minnesotans are heading to a lakeshore cabin this Memorial Day weekend. If you're one of them, aside from the boating and picnicing, chances are you may be doing a little yardwork. But before you get winded mowing that acre of lawn, you might want to look over a new book put out by the Department of Natural Resources filled with suggestions on how to develop an environmentally friendly lakeshore frontage. DNR Nongame Wildlife Supervisor Carrol Henderson co-wrote "Lakescaping for Wildlife and Water Quality.