How about a HandySim? You could be on call, and go to sim's houses to fix their refrigerators or tv's...
You could own a lot for a repair shop, and sims bring broken appliances to you to fix! Sometimes a mysterious "agent" comes in and needs you to fix a scanner for Strangerville!
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I want to see more careers. Don't get me wrong, I have no problem with the rabbit hole careers, but it is 2019, rabbit hole careers started in 2000, you know? Not complaining, just making an observation lol.