You can offer the Landscape services and make a hundred dollars. 1. Cleanout mulch beds 2. Lay mulch 3. Move things for others 4. Plant large plants
House sitting for those going out of town for an extended period of time is an easy way to make a few bucks under the table without hardly doing anything.
If you are a handy person who has a skill you can make money off the books by offering your services to others. Ideas can include: 1. Plumbing 2. Wood working
This isn't technically a traditional under-the-table job, you can rent your car with Turo and charge $50 and up per day!
Similar to landscaping and handyman work, you can offer any type of labor help that will make it easy on someone else, but also get paid off the books in the process!