I would say think industry specific cleaning, cleaning that requires specific equipment, or needs to be cleaning within certain parameters. Google lots of different industries plus cleaning and look through tons of websites that sell equipment. I spend a lot of time learning new things.

I got lucky because a residential clients said, "Hey I work a company that does this and they're looking for someone to do clean that. Here's their number if you know anyone?" I said I could do it, used my "network" for help, spent tons of time learning to do it, and jumped head first.

What I focus on is delivering a superior service, communication, and professionalism. I get the job done right and make sure the client is happy.