Joe,
You could start a lawn mowing service. It's not too hard to clear about $20+ an hour out of such and it would make even more use of your pick-up when working out of the neighborhood. You could also add other fix-it service if you are handy or want to become so. If you go full legit, instead of cash only, you can write your pick-up (and mower) off as a business expense.
It has the additional benefit of being good exercise. After a while you will lose that weight you mentioned ...and be greatly admired by lonely housewives whose chubby husbands have weaseled out of the chore. And always remember it is counterproductive to dip your pen in company ink ...unless you handle it professionally as an Escort Service as previously mentioned. Beware of free cold beer.
Since you mentioned baldness, you might as well shave it all off and promote that xxx look like Yul Brynner, Vin Diesel, Telly Savalas etc. In business, image is everything.
It isn't like your bald spot isn't going to get sunburned anyway with all that yardwork. You can write off vast quantities of sunblocker and it will add shine.
After you have a lot of sultry sounding women customers calling your house, your marriage problem will likely take care of itself.
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