1. Doggy Clean Up
Many people have found success, some even full time by starting these doggy doo clean up businesses. You charge a flat rate and swing by clients houses at specified times to clean up and remove the waste from their residences.
Marketing costs are relatively low since you can start with your neighbors and work your way from there. I would suggest canvasing wealthier neighborhoods as those clients are more likely to have disposable income and less time to do the job themselves. All you need is a little pooper-scooper equipment and a good attitude to make this job pay.
2. House Cleaning
This one is also rather inexpensive to get going as most of what you need is cleaning supplies and a good work ethic. You will, again, want to market your services to neighborhoods that seem like their occupants have expendable income and little time. Busy families with a lot of kids are also usually in the market for someone to help clean.
Like I said, this business is competitive so on top of doing a really great job you may want to come up with another marketing angle. For instance, offer to walk the dogs, clean the carpets, or deodorize the house on top of regular cleaning.
3. Foreclosure Prepping
Being a foreclosure prepper means that you have a short period of time, sometimes 24 hours in order to turn a foreclosure into a house that is ready to be put on the market. This means cleaning any messes that were left by the previous residents along with removing any garbage or belonging that have been left behind. The nice thing is that most banks will allow you to keep what you find in the house and some of it can be worth a little money. I would totally use the opportunity to find and flip any products I could, but I know a guy who does this for a living who has some super cool finds around his house including a full-sized pool table.
This is another industry that is a little hard to break into because the bank is not going to hire just anyone to be on their property. Then there is a bidding war against others in the business. The thing is, if you can get your foot in the door, this can be a really high paying job.
4. Crime Scene Clean Up
This business is not as competitive because of the messes that you are paid to clean up ranging from a trashed apartment to actual pieces of people. The business did gain a little more popularity after the 2008 movie Sunshine Cleaning, but like most fads, it died quickly when people realized just how terrible this job can be. The thing about terrible jobs is that they usually pay very, very well.
5. Become a Handyperson
They great thing about this line of work is that there is never any shortage of work. You can charge by the hour or by the project and you are ultimately your own boss. Tools can get expensive which is a downside, but marketing is as easy as canvasing the neighborhood or throwing up an ad on Craigslist.
The great thing about painting is that the client will provide the most expensive equipment, the paint. You will need to have a few other items like a ladder, brushes, and a vehicle to transport everything. If you charge a competitive rate and do a great job there are no ends to how many clients you can get.
Everyone has their reasons for going into business for themselves, and just because you don't have any trained skills doesn't mean you should miss out on that freedom. This is a great starting point, but I would love to hear more ideas in the comments!