For those who keep track of the real estate market, buying, selling, and renting property could be a viable financial investment. Not only will you realize capital gains if you invest in the right property, there is also the possibility of earning rental income. If you had purchased your property relatively early in your career, at retirement you may have paid off the property’s mortgage and so whatever rental income accrues is basically your profit (minus, of course, maintenance).
I used to have fun doing surveys while I watched TV. I was choosy about the companies I used and I never paid to sign up for any. I got about $25 in free BlockBuster movie coupons, cashed out about $25 from another site and did an in house project trial where a company sent me to full size body lotions to use and record information about. I had fun, felt like my input was improving the business world, but I wasn’t looking to get rich quick, just earn a little bit in time that typically wasted. Some survey companies pay very little, others pay better. Of course, it is not fair to the businesses conducting the research to lie in order to qualify for a survey and they certainly deserve honest and thoughtful answers to their questions. The companies I worked with told me how much the survey would pay and how long it would it would take. Research for the reputable companies.
You could try advertising more, for example, by putting up signs around the neighborhood, posting about it on social media, or having people you know spread the word. You could also try doing it in a different neighborhood that might have friendlier people, or do it in a time and place where there's likely to be a lot of people walking around the area (e.g., near a church before the end of a mass). https://buzzingofferselfhelp.tumblr.com/