Good Lord when I think of all the types of jobs/fields I was in. The one common thread was that I had several things going on at the same time, still do. My husband is the same. We need a lot of different kinds of mental stimulation.
Currently we have an oil and gas funding company working on some consulting projects for setting up other offices and helping to catch the bad guys - same field, but separate entities.
Radio show/book/website - dating sorta related but separate entities.
Artwork/children's books - on the backburner but not forgotten.
We were thinking about about taking over a restaurant/local hang out but THANK GOD we didn't. I grew up and worked many years in that field and didn't want to do it again.
My husband has worked for many different industries and had different types of companies - hospitality and travel/tourism, oil and gas, mortgage company, skin care/cosmetics, media consultant to name a few.