Do you have practical skills? Ceramic tile backsplashes , cost is $150 for tools, condo dwellers will pay good money for an install, it does require two visits, one to install, one for grouting.
I produce peppermills, yeah I know they are $4 at every garage sale, mine are not. I spend a couple hrs in front of a lathe instead of the telly. Small handmade products, charcuterrie boards ect can pay ok.
Be a consultant. If your good (or not) at your job and it requires or could benefit from coaching, make up a course, rent a hotel suite and send flyers to every manager in your industry offering tangible results. One born every minute.
The common sense stuff like only refresh your email every hr so someones elses agenda does not become your agenda, and my fav if you pick up a piece of paper on your desk deal with it, dont just move it to the other side of the desk because, wait for it...., its still THERE! That stuff is revolutionary in sales training courses and managers will pay for it.
Dale Carnegie has the sales pyramid , Ash Associates made it twice as good by making a sales diamond graphic, whip up a graphic and call it the "sales circle" , get a catchy story about make contact, find a need, satisfy the needs, make the sale and close the circle! people love this *****>.
I got hundreds of thoughts
My consulting invoice for trying to help you is in your PM.