I have 2 neighbors that are fire fighters, both wonderful people. They have some great side businesses in their spare time.... For example, one hangs Christmas lights for families each year. Since they have ladders, and a comfort with climbing on roofs and not being scared of heights it makes sense! They have marketed themself very well over time and each year have returning customers who use their service- and we all plan around their schedule knowing they are fire fighters! Another neighbor paints curb numbers for people, who would have thought! But people want their address on the curb in front of their house, so he does that in his spare time to. Fun stuff! Unique ideas. They also volunteer a lot in the community. Good luck to you.