Q: I have a heavy-duty circular saw, and the plug on the end of the cord got smashed during a move. My mother has a lamp with a damaged plug, too. I don’t use the saw much, so I don’t want to dump too ...

Like rotating tires or changing oil, replacing spark plugs is a job that can be easily, and inexpensively, done in the confines of your own home. Although they don’t need maintenance as often as the ...