Rakuten(formerly Ebates) is another cash back app, similar to Dosh, and right now they are offering a $10 signup bonus. There’s no rule saying you can’t have multiple cash back apps, so why not sign up for a couple just so you get the bonuses? Once you get your bonuses, then just use whichever app gets you the best deal on your upcoming purchases. Easiest money ever!
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).
Writing an eBook, like you said, is not easy. First you have to have something to write about, which often means that you need to be some kind of respected expert in the field you wish to write about.However, if you can get past the initial trouble of selecting a topic, becoming an expert, and finally writing about that topic, that’s when the hard part really starts….
Mechanical Turk: Amazon's Mechanical Turk is a resource for doing human-intelligence tasks, or as the site commonly refers to them, HITs. You get paid a very small fee for any given HIT and you'll need a good deal of volume to make a substantial amount of money. But it is a resource you can use in your spare time to generate a small income online.
That said, lot’s of people are making extra money by publishing their own books on Amazon. For instance, my friend Bob published a few books on Amazon on how to make money blogging and has done very well. The first book provided basic tips for a small price, but his next book, Pro-Blogging Secrets, is offered at a premium price and he also has an online course.
Complete errands or tasks for the elderly. Older people often need help with buying groceries, cleaning their home, performing home maintenance, and paying bills. To find clients, contact your local community center or church to find out if anyone needs help. Additionally, you might post an ad in your local classifieds or talk to people you know to find out if they know someone who needs help.