Field service inspections can be a great gap-filler job for the self-employed. Home inspections for the buyers of real estate typically slow in the cold winter months in the North. Many home inspectors will fill the gap with field service inspections. A nurse working on a night shift can make some extra money during the day with some part-time field inspections close to her home. Pastors perform field service inspections when they are not preaching the word of GOD. Field service inspections can be a great gap filler.