My son works for a small firm in Nashville which writes and sells software for conveyor-belt machines and similar warehouse-y equipment (Amazon, UPS, that type

My son works for a small firm in Nashville which writes and sells software for conveyor-belt machines and similar warehouse-y equipment (Amazon, UPS, that type of thing). So as you can imagine that's pretty much a bottomless market right now. He makes more money that I do, which of course is what we hope for all our children.