Another big suggestion is finding small and easy ways to test business ideas and assumptions. I think this is implicit in your post. For example, if you have an idea for a digital course, you may do a free webinar on the same topic first. If you can’t get enough people to show up for a free webinar, then there probably isn’t enough interest for a paid product on the topic.
Maintenance work from the comfort of your garage or basement is challenging on two fronts: overall set-up (equipment, ventilation) and finding clients. Take shoe repair. Ben Roush, a cobbler in Omaha, Neb., says that used finishing machines (with the proper buffering and sanding devices) go for $10,000; stitchers, $1200; and hydraulic presses for adding glue, $300. Some repair work requires more electrical power, too: 220 volts versus the typical 110 volt capacity in most houses.
10. Avoid going into business before you know you have a winning idea. “A good way to vet this is also a method of bootstrapping: Apply for grants. If your idea is good enough to become a successful startup, it’s good enough for someone else to help with development,” advises Amy Baxter, founder of MMJ Labs, which makes reusable, inexpensive products for personal pain control. “Programs such as local university incubators, Huggies MomInspired, Cartier Women’s Initiative Awards, and even Small Business Innovation Research grants can bankroll part of your R&D.”
Market your talents to building contractors. People purchasing new homes can often be overwhelmed with the choices and possibilities in home decorating. Design some questionnaires for each major element and each major room in the house. Find out how the homeowner will use the home--are there children? Pets? Does the woman of the house wear high heels? Do the home's residents neglect to remove shoes? How will each room be used? Where might task lighting and ambient lighting be most appropriate?