Look into incorporating as an LLC, and renting your garage to your corporation.
That way, if anyone gets injured, they shouldn't be able to get your house by suing....in addition to the insurance...
In keeping with the "open to questions" get a separate phone line, use an answering machine and return calls. Put up posters or business cards (or both!) on local bulletin boards....
Aaron J. Cuffee
As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron.
- H.L. Mencken