If you have time to waste, your spouse doesn't have something you HAVE to do right now, you MUST have a dose of tractors or engines (the itch hits me about every other day, IF I haven't had a fix every day): Youtube.com has a lot of stuff posted by guys who want to show things like starting tractors (a good one on the complicated ritual of starting a D-8) or engines, cultivating corn with a JD-H, plowing with various old tractors. All you have to do is type "youtube.com" in the address line, then search within the YouTube boxes for things like "starting tractors," "tractors," maybe specific makes, etc. Haven't done a lot of this yet, but I will next time my wife doesn't have something I HAVE to do right now. Some of the videos are grainy, jumpy, have poor audio, etc., but they're fun anyway. I'm always amazed at how we all seem to want to share our excitement ("Look--it runs!!").